Completed missions are not in order

Is there any way to prevent the completed missions from ending up in a seemingly random order after a while? I’ve noticed that completed missions initially tend to be listed in the order you pick them up in (not when you completed them), but after a while this order goes out the window and the mission “Fresh off the Bus” will end up somewhere in the middle of the list somehow.

This has been bothering me for quite some time now and I’ve noticed the same thing in Borderlands 2 where it’s noticeable even after only completing two missions (the mission “My First Gun” will end up the middle of the list after just three completed missions). Ideally, the order would be fixed regardless of when you pick up the missions so you don’t feel like you to go out of your way to pick up the missions in a certain order if you care about that kind of thing.

I have no clue how the system works, maybe each mission is given an ID number somewhere in development, but there isn’t anyway to organize your missions that I know of.

And yeah, it is a pain looking for older missions through your log, been there before.