From: east coast, usa
I wasn't paying attention to other stuff, so I went back and looked at a turn 49 file and a turn 149 file to compare, and it does seem that other equipment is being replaced. For example, the Light Rifle Squads which are used by Italian units have expected numbers when looking at the number lost and the rate per turn and on hand.
But for the HRS's which are used by German units, it was turn 172 before any units received replacements. Some units were down to less than 20 rifle squads with an assigned of 300. And nothing weird going on, the units are in supply, not moving, not embarked. Yet for 172 turns they get no replacements. Then it was turn 188 before the next replacements arrived in units, and all the while about 37,000 in the on hand.
Now from turn 188 thru 200 it seems that units are receiving HRS replacements each turn.