ACAD 2018: Copy/Pate then crash

[Anonymous]

tl;dr When I copy/paste from ACAD 2018 to an earlier version, ACAD 2018 locks up and crashes. Anyone else have similar issues? I use a Bently Add-in called ProSteel for some 3D Modeling. Unfortunately the most recent ACAD version it supports is 2014. I had ACAD 2016 which I used most of the time for my 2D drafting. I would frequently copy/paste from 2016 to 2014 and Never had issues. I've done this for years, no problems. Now I upgraded my 2016 to 2018 and now I crash every time. Has anyone had a similar issue?

[hencoop]

Sorry, I am not brave enough to be the first to use a new release.  Have you tried to wblock the things you are copying and then import that to The Bentley add-in?  If it still crashes when you wblock out then you will have isolated the problem to AutoCAD 2018 alone and perhaps to the objects being wblocked.

[pendean · Accepted solution]

Since R2018 changed DWG file formats, you can no longer copy/paste from it to another lower AutoCAD program window. It is by design, you can't win here.

R2017-16-15-14-13 all are the same DWG file format versions, copy/paste between them works fine.

I wonder if you never knew the latter and why you, for some reason, copy/pasted between program versions that are all basically the same.

You should not be mixing DWG file formats like that either. You are headed towards a level of file corruption you might not recover from. Is your boss and your client up for that risk? Ask them, bet they would frown on it.

Why not (from R2018) use AECTOACAD command to export your file down to R2013 format, open it in R2016/2014 and copy paste there between files like you always did for some reason that remains perplexing to say the least.

[rkmcswain]

>>>> "When I copy/paste from ACAD 2018 to an earlier version, ACAD 2018 locks up and crashes."

Does that mean that 2018 locks up when you run the COPYCLIP command?

In other words, 2018 doesn't know or care what you do with the data after it's copied, so the part about "to an earlier version" doesn't make sense.

BTW: 2018 is a new DWG format, so very few things other than AutoCAD and AutoCAD LT 2018 will be able to read it.

[Anonymous]

Since R2018 changed DWG file formats, you can no longer copy/paste from it to another lower AutoCAD program window. It is by design, you can't win here.

R2017-16-15-14-13 all are the same DWG file format versions, copy/paste between them works fine.

While I can't confirm that this is the reason 2018 is crashing it makes the most logical sense.  I was not aware of this change in file format.  Thanks for pointing this out.