Yes it is just the Story Teller line that has no missions. They only have one mission but two outcomes.
The "waiting for civs" bug is making it hard to test.
Dang, I always for get those message texts.
Yes the WfC bug is making life difficult at the moment.
Edit when I press end of turn before getting the WfC bug I get the attached errors. The first and second come up frequently.
First and third are essentially harmless (still need tracking eventually, but have always been common). The second however is HIGHLY likely to be leaving to CTDs and should be investigated ASAP