Hey if its your first time posting, you probably missed this: https://forums.elementalgame.com/415301
Since its pretty well hidden 
Bugs tend to get more attention when posted on the FE Support. (All of us forgets, don't worry, and by all of us I mean I have forgotten about 90% of the time to put it there)
I still have the saved games where some of these issues occurred, i could find them if it would help. And on the same note: if i would reload an old save where something happened would the game recreate a relevant debug.err file?
I don't think so, I think the debug is a continual text thingie which just describes stuff as the game goes along. If you reload a save game, and the game crashes AGAIN then it probably will be worth it.
Thanks for posting.
Oh ps. Savegames are good if the bug is "reproducible" after loading the savegame.
Sincerely
~ Kongdej