Board Thread:Game Discussion/@comment-28401107-20160718050423/@comment-28412524-20160718061116

Turnin timer is a sign of problems from ad provider service (I have investigated that one day). I would suggest doing adverising id change plus hard restart of the app - in my case it generally helps (at least for few ads than process has to be restarted).

Internally they are querying ad providing services one by one, when one returns no-ad, it asks another one. Unfortunately at least one of them sometimes does not answer but keeps request waiting forever until is cut off by timeout (30s I guess). This stopps the process and that's why hard restart and/or advertising id change might help.