@fredo6
More and more puzzling. There seems to be something corrupted in the way Sketchup handles external files, including Ruby script files.

In the trace file, I see that you have just LibFredo6, other of my plugins installed. The trace indicates that their startup sequences did perform well. So, the crash occurs after the plugins are loaded.

In another forum, Dan Rathbun pointed out that the onExtensionsLoaded method of AppObserver is called right after the extensions are loaded. I found several extensions that have a derived AppObserver class. I'm not sure how to determine if any of them may be to blame or may be somehow interacting with Fredo_Tools.

Yes, I use the new graphics engine. For whatever reason, this morning SketchUp is launching without spin with all fredo6 extensions and all su_ extensions active. So right now, changing to the old graphics wouldn't prove anything. The whack-a-mole on this is getting very annoying!

@fredo6

I'm pretty sure I tried with nothing but your extensions in the Plugins folder, otherwise this would raise the possibility of a conflict with something that loads after them. I'll try that again tomorrow just to make sure.

Several times, after force quitting a spin, I have had to try multiple times before SketchUp will launch cleanly again. That makes me wonder if some aspect of state is being saved in a corrupted way that disrupts SketchUp. But diagnosing that is above my pay grade.

@fredo6

I reinstalled Fredo6_Tools to get a spin. Took it back out and relaunched without spin. This is the trace log from the previous session

LibFredo6Trace_26_1760445486517.txt

Another strange effect of note: in the log viewer window, when I export TXT, that worked and a popup opened asking if I want to open the file. I clicked YES, and SketchUp went into a spin! This seems the same as how the Plugin Store window hangs...

@fredo6
@TIG
@Rich-O-Brien

It just got weirder!

I was shuffling various combinations of extensions in and out in an attempt to track down possible conflicts. This time TIG's split extensions (donut, sausage, splitTools) needed to be excluded to avoid a spin but Fredo_Tools can be present. I am sure that earlier I did not have those TIG tools installed when it spun on Fredo_Tools! They are quite old and I don't use them much, so I can live without them.

Further, when I got it launched with those TIG extensions off and Fredo_Tools on, I opened the SketchUcation Plugin Store extension to see when they were last updated and as soon as the store window opened, SketchUp went into spin!

Something is seriously unstable but I don't know what! Every other extension I had in 2025 is installed and, when SU manages to get running, they appear to work correctly.

To answer your questions,

I had let the new migration manager move extensions across from 2025. Then I used Fredo's check for updates to verify that his were up to date (needed the newer LibFredo6). I haven't tried reinstalling other extensions where I appear to have the latest versions - which I would have to do by going to the Plugin Store via the browser rather than the Plugin Store extension. I'll try that to see what happens.

• OK, I tried downloading and installing the latest Fredo_Tools, and SketchUp is spinning on launch again! Stopped the spin when I removed Fredo_Tools again. Could something corrupt be getting stuck in a cache somewhere? Maybe a corrupted json file?

I don't think it is licenses because Fredo's checker reports the correct ones. Why would that be right yet somehow be causing a spin?

I have not gotten any BugSplats.

@fredo6 said in Sketchucation Tools 5.0.3:

Joining the thread...

So, it's not Sketchucation Tools nor SCFLicense, but FredoTools.

A few questions:

• Do you launch Sketchup on a custom template or the default template?
• Which Mac version?

I use a minimally customized template, though this is happening both when opening an existing file last saved from SU 2026 and also when starting a new file from my template.

As stated before, macOS 26.0.1 on a 2019 MacBook Pro 16"

@TIG

I am running SketchUp 26.0.428, as stated in my first post. I haven't run SU 2019 in years! My computer is an elderly 2019 MacBook Pro, but it is up to date on the latest macOS and SketchUp versions.

And one more test that seems to identify the culprit: If I restore all of Fredo6's stuff except Fredo6_FredoTools, SketchUp launches without spinning.

Fredo6 Plugins Information on 2025-10-13 12:35:51 -0400

• Platform: x86_64-darwin - Ruby: 3.2.2
• Sketchup: 26.0.428
• LibFredo6: v15.5a
• LibFredo6 Binary loaded
• Sketchucation ExtensionStore: 5.0.3
• SCFLicense: v7.1a - 72
• Fredo6 Plugins

  Curviloft v2.0a - licensed FULL: 29405 - CV1627251325.0G
  Curvizard v2.5a - licensed FULL: 29408 - CV1627251325.0G
  FredoCorner v2.7a - licensed FULL: 20072 - CV1627251325.0G
  FredoScale v3.6a - licensed FULL: 29406 - CV1627251325.0G
  FredoSpline v2.6a - licensed FULL: 20074 - CV1627251325.0G
  JointPushPull v4.9a - licensed FULL: 29404 - CV1627251325.0G
  RoundCorner v3.4a - licensed FULL: 29403 - CV1627251325.0G
  ToolsOnSurface v2.6a - licensed FULL: 29410 - CV1627251325.0G
  TopoShaper v2.7a - licensed FULL: 29407 - CV1627251325.0G
  VisuHole v1.5a - licensed FULL: 29409 - CV1627251325.0G

• SCFLicense directory present

  Signature File: 2021-07-25 18:15:25 -0400
  Curviloft: 2025-07-25 09:21:13 -0400
  Curvizard: 2025-07-25 09:21:31 -0400
  FlatText: 2024-10-04 09:57:56 -0400
  FredoCorner: 2021-03-27 15:12:28 -0400
  FredoScale: 2022-03-02 09:04:10 -0500
  FredoSpline: 2023-03-14 17:08:26 -0400
  JointPushPull: 2025-04-02 18:14:32 -0400
  RoundCorner: 2022-03-02 09:05:06 -0500
  ToolsOnSurface: 2022-03-02 09:05:26 -0500
  TopoShaper: 2025-07-25 09:22:24 -0400
  VisuHole: 2024-04-17 11:29:50 -0400

Took out Fredo6_FredoTools and it launched ok.

• Platform: x86_64-darwin - Ruby: 3.2.2
• Sketchup: 26.0.428
• LibFredo6: v15.5a
• LibFredo6 Binary loaded
• Sketchucation ExtensionStore: 5.0.3
• SCFLicense: v7.1a - 72
• Fredo6 Plugins

  Curviloft v2.0a - licensed FULL: 29405 - CV1627251325.0G
  Curvizard v2.5a - licensed FULL: 29408 - CV1627251325.0G
  FredoCorner v2.7a - licensed FULL: 20072 - CV1627251325.0G
  FredoScale v3.6a - licensed FULL: 29406 - CV1627251325.0G
  FredoSpline v2.6a - licensed FULL: 20074 - CV1627251325.0G
  JointPushPull v4.9a - licensed FULL: 29404 - CV1627251325.0G
  RoundCorner v3.4a - licensed FULL: 29403 - CV1627251325.0G

• SCFLicense directory present

  Signature File: 2021-07-25 18:15:25 -0400
  Curviloft: 2025-07-25 09:21:13 -0400
  Curvizard: 2025-07-25 09:21:31 -0400
  FlatText: 2024-10-04 09:57:56 -0400
  FredoCorner: 2021-03-27 15:12:28 -0400
  FredoScale: 2022-03-02 09:04:10 -0500
  FredoSpline: 2023-03-14 17:08:26 -0400
  JointPushPull: 2025-04-02 18:14:32 -0400
  RoundCorner: 2022-03-02 09:05:06 -0500
  ToolsOnSurface: 2022-03-02 09:05:26 -0500
  TopoShaper: 2025-07-25 09:22:24 -0400
  VisuHole: 2024-04-17 11:29:50 -0400

Homing in on it. I left the SketchUcation Tools installed, removed half of Fredo6's extensions. This time it launched ok. Here is the report:

Fredo6 Plugins Information on 2025-10-13 12:20:34 -0400

• Platform: x86_64-darwin - Ruby: 3.2.2
• Sketchup: 26.0.428
• LibFredo6: v15.5a
• LibFredo6 Binary loaded
• Sketchucation ExtensionStore: 5.0.3
• SCFLicense: v7.1a - 72
• Fredo6 Plugins

  Curviloft v2.0a - licensed FULL: 29405 - CV1627251325.0G
  Curvizard v2.5a - licensed FULL: 29408 - CV1627251325.0G
  FredoCorner v2.7a - licensed FULL: 20072 - CV1627251325.0G
  FredoScale v3.6a - licensed FULL: 29406 - CV1627251325.0G
  FredoSpline v2.6a - licensed FULL: 20074 - CV1627251325.0G

• SCFLicense directory present

  Signature File: 2021-07-25 18:15:25 -0400
  Curviloft: 2025-07-25 09:21:13 -0400
  Curvizard: 2025-07-25 09:21:31 -0400
  FlatText: 2024-10-04 09:57:56 -0400
  FredoCorner: 2021-03-27 15:12:28 -0400
  FredoScale: 2022-03-02 09:04:10 -0500
  FredoSpline: 2023-03-14 17:08:26 -0400
  JointPushPull: 2025-04-02 18:14:32 -0400
  RoundCorner: 2022-03-02 09:05:06 -0500
  ToolsOnSurface: 2022-03-02 09:05:26 -0500
  TopoShaper: 2025-07-25 09:22:24 -0400
  VisuHole: 2024-04-17 11:29:50 -0400

Hmm...If I remove all the extensions except SketchUcation Tools, SketchUp will start without spinning. If I then restore all of Fredo6's extensions, it spins on launch again!

@TIG said in Sketchucation Tools 5.0.3:

Are you still running v2019

Is this directed to me or to Fredo? I am running macOS 26.0.1

@TIG said in Sketchucation Tools 5.0.3:

So to clarify. Please confirm...
You now have no SketchUcation.rb or SketchUcation subfolder in your Plugins folder having temporarily moved them.
You have temporarily moved the SCFLicense subfolder and SCFLicense.rb [usually in your SketchUcation folder] back into your Plugins folder.
You have restarted SketchUp.
Does the licensing set up load ?
It seems not !

Correct.

If you add the SketchUcation subfolder and its RB file back into Plugins, AND temporarily remove the SCFLicense.rb and subfolder from the SketchUcation subfolder, AND also remove those you moved into Plugins: after a restart of SketchUp does SketchUcation toolbar/submenu load OK ? If so the issue appears to lie with our licensing set up... [@fredo6 ?]

I did this, and SketchUp still spins on launch.

@Rich-O-Brien

Fredo6 Plugins Information on 2025-10-13 11:48:18 -0400

• Platform: x86_64-darwin - Ruby: 3.2.2
• Sketchup: 26.0.428
• LibFredo6: v15.5a
• LibFredo6 Binary loaded
• Sketchucation ExtensionStore: NOT installed
• SCFLicense: NOT installed
• Fredo6 Plugins

  Curviloft v2.0a
  Curvizard v2.5a
  FredoCorner v2.7a
  FredoScale v3.6a
  FredoSpline v2.6a
  FredoTools v4.5c
  JointPushPull v4.9a
  RoundCorner v3.4a
  ToolsOnSurface v2.6a
  TopoShaper v2.7a
  VisuHole v1.5a

@Gábor

Yes. I erased those items and now SketchUp starts again.

@Gábor

Yes, I install all extensions in the default folder.

I did the copies you suggested, and SketchUp still spins on launch.

I have found that SketchUcation Tools 5.0.2 and now 5.0.3 causes SketchUp to go into a not responding spin on my Mac (2019 MBP Pro running macOS 26.0.1, SketchUp 26.0.428). I have to force quit SketchUp to stop the spin and then manually clean up the "headless" process that is left behind (I reported this zombie on force quit issue separately to the SketchUp team, who have not been able to reproduce it so far.).

If I move the SketchUcation Tools rb and folder out of Plugins, SketchUp behaves normally except, as expected, SketchUp says all my licensed extensions have expired trial periods, making them unusable! Lack of Fredo6's tools is killing my workflow!

Usually the spin happens while loading extensions, though it also happened once while I had the Sketchucation Tools window open and once when the Extension Manager window was open to reinstall this extension.

What can I do to help diagnose the cause?

A skp file contains a human-readable (ASCII) header at the very beginning of the file, identifying the specific version of SketchUp used. However, the bulk of the file is a proprietary binary format. File recovery programs have a poor track record reconstructing binary files.

You can see what is sent in the BugSplat by clicking the view details button on the report dialog. The details are very technical, basically an OS crash dump report, so not useful to anyone who is not an expert. Also, if the crash is due to an issue with a Ruby extension, although one can sometimes verify that Ruby was the cause, it is not possible to tell which specific extension was responsible. Further, there is often an interaction between extensions to blame but the crash report only tells you about what one of them was doing at the time.

Uninstalling half at a time is a much more efficient process than doing it one at a time. Basically log2(n) vs n.

That error looks like a downstream consequence of something failing to load earlier.