Pythium problems - communion&gladiators

[Raspi]

Hi, I'm a new player to dom 2, have played some dom 1 and now I'm back for more.

I decided to try the Pythium nation in an upcoming pbem, and I have 2 problems with them.

1. My communion isn't working, I have theurgs and arch theurgs casting communion master, and also many communicants. 4-5 theurgs, 20~ communicants. The problem is that none of my casters are getting their casting levels raised, the communicants do soak in the fatigue and receive all the enchantments cast by the masters, but the caster levels stay as they are. What am I doing wrong?

2. I noticed a weird problem with gladiators. Sometimes when I buy a batch of them, they don't show up at all. There is 0 unrest in the province, and tons of resources to spare. Scales are growth 3 production 3, and dominion strenght 6.
This problem only occurs with gladiators, all the other troops are produced normally. I don't get the money back either.

I'm using the Version 2.13, I hope its me doing something wrong, and not a bug. Any help is apprecetiated.