Since I wouldn't want to spread myself too thin I would like to add another anomality that I have been plagued with for some time.
When using Libre Office's calc on a dual head monitor setup configured in portrait mode, sometimes it happens that when calc is open full screen and I simply wish to drag and drop it onto my 2nd screen that the whole screen dissapears and shrinks back into a 2x mouse cursors up by 2x cursors wide.
Another way that I can explain this is the whenever I select the upper menu bar and start dragging it around that it will resize only to display the top hand-right side X button and only half of the FULL SCREEN button.
Once I am happy of the location on my screen of this tiny resized window, I re-maximize it and calc is "back to normal" in terms of screen display.
Am running this:
ii libreoffice-base-core 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- shared library
ii libreoffice-calc 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- spreadsheet
ii libreoffice-common 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- arch-independent files
ii libreoffice-core 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- arch-dependent files
ii libreoffice-draw 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- drawing
ii libreoffice-gnome 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- GNOME integration
ii libreoffice-gtk3 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- GTK+ 3 integration
ii libreoffice-help-common 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- common files for LibreOffice help
ii libreoffice-help-en-us 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- English_american help
ii libreoffice-impress 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- presentation
ii libreoffice-math 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- equation editor
ii libreoffice-ogltrans 1:6.3.4-0ubuntu0.19.10.1 all transitional package for libreoffice-ogltrans
ii libreoffice-pdfimport 1:6.3.4-0ubuntu0.19.10.1 all transitional package for PDF Import component for LibreOffice
ii libreoffice-style-colibre 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- colibre symbol style
ii libreoffice-style-elementary 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- Elementary symbol style
ii libreoffice-style-tango 1:6.3.4-0ubuntu0.19.10.1 all office productivity suite -- Tango symbol style
ii libreoffice-writer 1:6.3.4-0ubuntu0.19.10.1 amd64 office productivity suite -- word processor
Linux T-2031 5.3.0-26-generic #28-Ubuntu SMP Wed Dec 18 05:37:46 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I also believe that this issue has been present for some times.
Lastly, I am not sure if this problem always starts out of nowhere or if it's always present. So, if I open a MATE session using a freshly booted system I not certain if it will behave that way. Rather, I believe that this starts happening only when I have opened a couple of windows (and one that is set to ALWAYS VISIBLE) for LO to start having resizes issues.
However since I am not sure about this, my next step will be to retry immediately following my next reboot and see how LO behaves with a freshly booted up system.
Stay tuned