Printing Slowness / Hangs on Ubuntu 20.04

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Printing Slowness / Hangs on Ubuntu 20.04

visierl
I am running the following:

Version: 2.1.3
Compiler: GNU GCC 9.3.0
Compiled on: Mar 23 2020
Qt Version: 5.12.8
Boost Version: 1.71.0
System: Ubuntu 20.04.1 LTS

About half the time when I go to print a fairly simple drawing I am working on, Librecad becomes unresponsive for about 30 seconds or so (long enough for my window manager to pop up a window and ask if I want to force kill it).  If I let it finish, it does pop up the printer selection dialog and will print.  Other times, the printing dialog pops up immediately and printing works normally.

I have searched both here and on Google for any recent reports of similar behavior and have found none.  Is this something others have experienced?  Is there a workaround (aside from waiting forever for printing)?
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Re: Printing Slowness / Hangs on Ubuntu 20.04

visierl
Never mind, at least for the moment it appears to be related to a problem with AppArmor and CUPS, not a LibreCAD thing at all.  Sorry for the noise.