For the last several years I've been doing this to get tabular data into Scribus: Format data in LibreOffice Calc, highlight the table, Ctrl-C, click into Scribus, Ctrl-V, and drag the scalable object of the table where I want it. Now I'm not getting anything when I paste. If I paste into a text box, I get the unformatted text only.
Edit to add: running it from a command line doesn't show any errors or messages when pasting, either.
This not working has really messed up the efficiency of my workflow. What did I break? Is it a change in Scribus, LibreOffice, KDE,

?
Thanks for any insights!
Scribus Version 1.5.5.svn (Portage ebuild)
27 December 2018
Build ID: C--T-F-C1.16.0-64bit
Using Ghostscript version 9.26
LibreOffice 6.2.4.2.0+ (Both Portage ebuild and precompiled binary)
Gentoo Linux (current)
KDE 5.57.0
QT 5.12.3
Also tested not working (but only after my regular Linux setup stopped working, so not sure if it ever did):
Scribus 1.5.4
LibreOffice 6.2.4 and 6.1.?
Windows 10