I've seen the Dolphin terminal get stuck before. I'll type exit
in the terminal to close it and then F4 to open the terminal again, which then behaves normally.
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Plasma 6 Bugs
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Thanks for the suggestion. Unfortunately, it still doesn't work the way it used to.
Hmmm. This is either tangentially-related or an extension of the same issue you experienced... but I started using the terminal within Kate this past week troubleshooting a .bash_aliases function error and noticed that it too was not updating its environment as expected, even after editing the file and running source ~/.bashrc.
I spent 30 minutes only to realize that all of my edits/source reloading were not registering within the Kate terminal for some reason, but were working as expected in Konsole. Once I shutdown Kate and restarted it, the issue was fixed but that seems like a bug and it makes me wary about leaning to heavily on the terminal within Kate (or any other KDE apps outside of Konsole)