Riots?

[Tim_Ward]

I am not sure what else to do to end the rioting.

Or, you can try:

- Moving moar ships into the system. Like troops, these also improve happiness.
- If there are large hostile fleets in system, destroy them or make a treaty with the owners
- Construct an urban pacification center in the system.

It's all a bit vague and haphazard, though. Frankly, the planetary management side of SEV is by far the weakest part of the game. It is little different to the system in SEIII. I hope it gets a drastic overhaul for the next iteration.

The "mood" is rioting, but they are 100% loyal to me.

Loyalty and happiness are different things - loyalty represents the degree of assimilation into your empire of newly conquered subjects. I'm not sure what, if any, effect this actually has though.