@L-i-am
Probably the way those who disagree with the powerful seem to 'accidentally' fall from high windows more frequently than you'd expect ?

The following extensions of mine have been updated for compatibility with v2024 Ruby - the deprecated Fixnum has been removed.
https://sketchucation.com/pluginstore?pln=ExtrudeTools - v6.0
https://sketchucation.com/pluginstore?pln=Latticeizer - v1.9
https://sketchucation.com/pluginstore?pln=Roof - v6.0
https://sketchucation.com/pluginstore?pln=SKMtools - v20240425
https://sketchucation.com/pluginstore?pln=TIG_Smart_offset - v4.0

Welcome back to the forum, safely I hope for you and yours...

v5.0 of PurgeAll is available - it fixes some minor glitches with v2024 changes...
https://sketchucation.com/pluginstore?pln=PurgeAll

@i5963c
The reason the toolbar appears is, because there are updates available - hence the red marker on the first button - not present otherwise.
If you open the ExtensionStore dialog and choose to install the updates, then close the toolbar, when you restart SketchUp the toolbar stays off, until you next activate it.
If you don't want the updates simply dock the toolbar in the side bar with others, it's unobtrusive...

@sashapepperspray
The method File.exists? has long been deprecated, but worked.
In the latest Ruby version it doesn’t - File.exist? - works in v2024 and older versions as well.
Many developers are working to adjust their code accordingly.

Have patience and post any instances in an affected extension's thread - as there are 100s of 1000s of line of code with the tiniest corrections needing to be found and change, then the extension re-encrypted and signed…

Many authors have already fixed their extensions, so look regularly to see if there’s already an update available…

@Joel3dm
Yes.
Make the non-auto-updating SectionCutFace unLocked and choose a material/color that's already used in the model [from a list].
A SCF's material applies to all faces, but you can edit the group and apply any material to any face etc...

Use the Outliner.
You can then expanded the 'tree' and select the nested Container, and double-click it in the Outliner to edit it that way.

v5 is now available in the PluginStore / ExtensionStore³
https://sketchucation.com/pluginstore?pln=Multiple_Offsets
It's now compatible with the newer SketchUp version's Ruby methods [e.g. 'FixNum' was deprecated in favor of 'Integer']
The RBZ is now also 'signed' to suit all Loading Policies...

New signed [unencrypted] extension in the PluginStore / ExtensionStore.
TIG_ShowTime
Displays time and/or date on screen in various formats, useful for multi-scene shadow studies, animations etc.
Usage: Extensions menu > TIG_ShowTime... Submenu > On (dialog for Format, X, Y, Delay) | Off | Help

@b2pi
I have fixed the issue and there is already an updated version 'in the pipeline' - watch for its release...

I have just retested it and I do see an issue.
With it set to ignore updates it's still reopening the toolbar on restart.
This is not correct.
I look into a fix...

The toolbar can be switched on/off in the standard view > toolbars section.

Also there are 2 toggles in the menu,:

1. to switch off the toolbar [and on] AND ignore any subsequent updates-available notification [i.e. do not reopen].
2. to switch off the toolbar [and on] BUT to reopen the toolbar automatically if there's an updates-available notification.

The EXTG and PROP terrains must have the same overall footprint.

When you have the skirt fitted onto a simplified EXTG group
it should still report as 'solid' in Entity info,
copy that group to one side and edit that copy.
Draw three Guide lines to help locate a new skirt later, on the group's axes.
Delete the top terrain, but keep the vertical skirt and bottom face.

Next copy the PROP group to one side and edit the copy.
This time delete the skirt and bottom face, but keep the terrain geometry.
Exit the edit and select the EXTG-copy group and Edit>Cut it to the clipboard.
Reopen the PROP-copy for editing.
Edit>Paste-in-Place.
The EXTG-copy skirt group in now inside the PROP-copy terrain group.
If the skirt-group doesn't line up with the terrain's axes, then Move it into place
using Shift to restrain the movement in the Red/Green axes only.
The guide's intersection should help with this relocation [if needed].
Explode the skirt-group so that the PROP-copy now contains only geometry.
Erase any Guides left behind too.
The PROP-copy should now contain its terrain top and skirt/bottom copied from EXTG.
Exit the edit and check the PROP-copy in Entity Info - chances are it won't be a 'solid'.

We now need to make it a solid...
Use Thomthom's SolidInspector2 on the PROP-copy to see where the errors are reported.
They will be highlighted in Red.
Fix the ones that it reports as 'fixable'.

If there are other 'non-auto-fixable' errors - e.g. complex holes or inner faces -
then you need to dip in and out of SolidInspector2 and the model itself
[into PROP-copy group > edit] and manually fix these issues in turn.
Use pan/zoom to position yourself over the issues that need fixing...
It's best to have sun/shadows on so you can see holes more easily and the Default-materials showing,
with the back-material being set to a distinctive color - e.g. bright green.

These might be 'flaps' or 'shelves' that need deleting, missing faces that need healing by drawing
over edges to force a face to form, or adding diagonal lines to triangulate geometry and force
facets to form [it's best to triangulate resistant faces to infill facets,
even if the larger hole's perimeter appears 'planar'.]
As you do this you might accidentally form internal 'partition' faces and you'll
need to delete those too using a section plane to look inside the form can help in this regard.

Remember that a manifold solid can only contain edges and faces.
That is no nested groups or components.
Every edge must support exactly two faces.
That means -
No 'faceless' edges [i.e. stray lines].
No edges with only one face [e.g. flaps, shelves or hole-perimeters].
No edges supporting three or more faces [e.g. two 'boxes' sharing a common edge for 4 faces].
Faces should be consistently oriented 'outwards' with the back-face materials 'inside' the form.

Once you have a solid form reported in Entity Info you are good.
Replace PROP with PROP-copy and try CutNFill again on these simplified forms -
the skirts should now match so that hurdle is avoided...

I've looked at it and the differences between the PROP[osed] and EXT[istin]G groups are so tiny in many cases,
that you are unlikely to be able to do a solid/subtraction that results in a solid group afterwards.
So it'll report a 0 volume.
It's a limit of SketchUp - not CutNFill itself.

To prove this to yourself try and do a solid > subtraction and see the non solid result ?
It's just like CutNFill's - a woeful non-solid with many missing facets.
Try and making a much more simplified version of the two, with sensible differences -
sites are not worked to mm so don't ruin SketchUp's chances of success with very tiny differences...

There are some paid extensions to help with this - e.g. Skimp
Skimp has a 5 day free trial - you will need it to reduce the 2 forms by a significant factor
[e.g. 33% twice], then make the resultant simplified solids [components] back into groups again
and then remake their matching skirts to suit in CutNFill too because the simplification will ruin the existing ones.
After that you might have change of a solid > subtraction result ?

After a hiatus of 14 years, here's v1.4
Please re-read the edited usage in the first post in this thread:
https://community.sketchucation.com/topic/133971/plugin-texturerandomizer
Download it from the PluginStore page or ExtensionStore dialog within SketchUp.
https://sketchucation.com/pluginstore?pln=TextureRandomizer
NOTE how the code and interface was revisited by myself and raumstaerke.de , who added a single dialog for settings using AI.

Unfortunately your EXTG and PROP groups are very very complex, and have many faces and edges that are almost coincident.
The native Solids Subtract tool will let you take one from the other, BUT the results are made non-solid, with 0.0 volume.
Because CutNfill relies on these tools, that is why you can't get meaningful results.

SketchUp's built-in tolerance is 1/1000" and any edges that would be shorter that that are ignored, as if their end/start points are coincidental, but the tiny gap is not 'healed'. Consequently, any faces relying on such missing tiny edges will fail to form, and the result is a non-solid group with 0.0 volume.

So you need to make your modeling much simpler and ensure that this tiny geometry issue is sidestepped.
In real life cut and fill is not an exact science on site, so any approximation does not need to be perfect.

One long running Windows Explorer bugbear is that SKP files etc show an image in their file-icon,
but SketchUp’s .SKM [material] and .Style files do not
[of course they do show up in SketchUp itself, but use a generic icon in Windows Explorer].
There are paid 3rd party apps to fix this, but the free ones
[e.g. SageThumbs] fail with SKMs - that's until now.
There is a good free and safe alternative called ‘Icaros’.
It’s simple to install and use.
You need to add this to its supported filetype lists -

;.style;.skm

and restart to see your Style and SKM files images in Windows Explorer file-icons…
https://github.com/Xanashi/Icaros/releases/tag/v3.3.5

Their was a glitch in the version of SketchUcation tools that was available briefly a few days ago.
If you installed that you can get license error messages.
It was reverted to to previous version v5.0.6 in the PluginStore, and you should try and install that to see if the error is resolved.
After a restart, if the problem continues let us know.
A correct and updated version will be published asap...

Sorry, but you need to get/install the current version of the SketchUcation tools [5.0.6] -
a briefly available update was quickly found to be causing some users issues with their licensing.
It's been reverted, but a corrected and updated version should be published soon.
If you are still experiencing issues with this currently available version then please let us know, and well strive to fix things quickly...