Many times a day I have to stop evolution (quit, then evolution --force-shutdown when it hangs on quitting) 2.25.92 because it just stops displaying the contents of a message I click on in the preview window (i.e. I move to a new message in teh summary and the content of the preview window doesn't change).

If I double-click a message so as to open it in a new message viewing window, the new viewing window instantiates however it's empty.  Completely blank.

At this point evolution is useless to me and this is why I have to quit and restart.  However, simply quitting doesn't really work either.  The UI will "grey out" as it normally does when shutting down but then it never really completes quitting.  I have to use evolution --force-shutdown to make it exit and restart from there.

I just tried something new.  I thought that perhaps going offline/online might reset it's state and have it showing messages again.  No luck.  The only thing that happened was that the offline/online toggle at the bottom left went grey (i.e. unselectable).  A Send/Receive at this point brings up the familiar S/R window and my three active imap accounts are listed with progress bars and cancel buttons but the progress bars show no progress and under each account it says "Updating..." but nothing is really happening.

While in this state, here is evo's stack trace:

+ Trace 213317

Hrm.  Doesn't seem very useful, does it.  That is however the output of a "thread apply all bt full" in gdb.

As I said, this happens many times a day, so I am happy to try any debugging assistance you might need with this to figure out why it's getting so gummed up.