Problem you’ll run into is those accounting departments can be stretched pretty thin and while they’re doing their best there are delays from the ideal.
Someone has to look at it, generally speaking, and if they’ve got 80 hours of work in a 40 hour week it’s just impossible to be ideal.
If you’re submitting weekly expenses I’d think you’d be getting in the groove that each pay period should be about the same if each week is about the same and while you’re “behind” on paper the dollars should be relatively stable, yeah?
I feel your frustrations. You’re not alone but I wonder if how it’s supposed to work and how it really works might be a source of frustration as well as unmet expectations which is reasonable to be upset with.
Good luck G