New module load never seems to finish loading splash image

Using 3.5.5 on Linux.

nicholas@leonhartsberger:~/VASSAL/modules$ uname -a Linux leonhartsberger 4.19.0-8-amd64 #1 SMP Debian 4.19.98-1+deb10u1 (2020-04-27) x86_64 GNU/Linux

A couple of times now I have tried to load a new module and the splash image never finishes loading. However I mean the dialog listing the files as they are being loaded just sits there. When I finally give up, everything seems fine.

I should say the last module I saw this on was the 2.4.1 version of Britannia.

Would you post the full errorLog from one of these runs?