I found a bug in engrampa. When I tried to report it I got to https://bugs.launchpad.net/ubuntu/+source/engrampa/+filebug/d65ee956-654a-11ed-99a1-40a8f0305cb4.
After an hour, the bug data was still not processed.
I tried a second time. Same results.
This is what happens when children try to code.
P.S. The engrampa bug is that when I try to open a .txt file, it checks to see if a Pluma window is open. If one is, it closes all open tabs, then opens a tab with the specified files. The correct behavior is not to close and tabs.