Ohh, sorry, it's true it's late in Sydney , here in italy we
are still on the 21
Anyway, I erroneously thought that it would have been the same to use the original
model instead than the one with only the copy-pasted part.
You rightly showed me I was wrong.

Soo, uhm uhm, I'll try to work on a copy-paste part on another file and
reimport it on the original mode..

But that's a really crappy bug, since I am always careful to my geometry and
I clean and verify my model often.

Thank you Box!

Still here :[

You are right, I scaled the group, but now I need it "as it is", if i reset the scale it turns
back to a size/proportion I don't want.
And if I ungroup the model and I regroup it again, it changes his position and size as well.

I don't understand what is causing that behaviour.

Sorry for the late reply, here's my problem on the model you checked.
I like to keep all the edges hard to have a better view of the geometry and polygons.
I mostly never use hidden(softened) edges.

Hi, I have been working on a model for quite a long time,
and now got stuck on a weird and work-breaking bug that prevents
me from finishing my model.

Basically, I have a group containing a small model, and I'm working inside that group.
I need to copy a section of the model, (using ctrl+move or ctrl+c ctrl+v), to work with
it separately, but as soon as I clic with de mouse to place the copied piece, it deforms
randomly by about 2-4 millimeters. This make the piece unusable because the misaligned
sides can't blend properly with the rest of the model.

After the copy, if I check the model, a few errors are found:

Il vertice di inizio o fine per CArcCurve (697) non è valido - corretto

wich translated in english is:

The start or end point for CArcCurve (697) is invalid - correct

I've attached the problematic group.
I've used the same identical group a few times in the same model and until they are copied, they work fine

I'm using the latest version of sketchup 2017

Thank you!
Lucide

the file contaning the problematic group

And here he is, Fredo6
Lightning fast, with a new amazing update for one of the most used sketchup plugin in the entire community!

By the way, thank you
Lucide

Thank you TIG and Fredo6!
I managed it to work by downloading the plugin from sketchucation store "manually" (search->download), instead of through the "bundle" menu as i was used to.
Actually i don't know if it has really fixed the glitch, because sometimes the problem occurs again (it's sufficent to reload the model to get it working), or the interface vanishes during the "select" phase (this always happens on curviloft, more rarely on curvizard).
Thank you for your your responses!
Lucide

ps. i always run sketchup as administrator, and so i did with the installer.
I tried to disable all the other plugins too, to prevent potential conflicts, but it didn't change anything. (i don't use particularly exotic plugins)

**Update:**i reinstalled sketchup (actually, i reinstalled completely windows) and i replaced it with the 2017 edition, but this problem is still occurring! Help, it makes the entire tool unusable, and i was used to work so much with it...

Thanks Fredo for all your hard work.
I want to ask you about a problem that i have with Curvizard 2.0a on sketchup 2016.
Both Curvizard and Libfredo are updated. (i checked with the sketchucation store v3 and with your tool)
Every time i clic on any button, sketchup acts as i clicked on "undo" (like ctrl+z).
This hissue happens only on Curvizard, but with almost any button.
Do you know what could be the problem?

Thanks,
Lucide.
ps. i don't speak english very fluently