Cohors Reformata and Casse vs Aedui

[Oleo]

There is two things I noticed. I searched the website if they are mentioned but I dont see anything:

I am in my second Roman campaign. During both campaigns at some point the Casse and Aedui start making peace and war every turn, one turn war, next turn ceasefire, next turn war, quite irritating. Does everyone have that?

Also, in my second campaign I did a little editing: After turn 1 I edited the date of the save game to 150Bc and after turn 2 I edited the date to 108BC so I can play with marian troops (if I had done it in one step to 108bc the gamefile would have been corrupted). So far I havent had any problems playing, there is just one small question I have:

A cohors reformata has 101 units (100 + captian), I recruited one cohors at ariminium that has 102 units (101 + captain). Is this a bug or a feature?

Edit: I also have Vigiles in 121, 122 and 124 sizes.