The ProgressTimer (CCProgressTimer) is on some Android Devices invisble (or just not rendered). But same Code without any changes works well on Android < 7 and IOS. This Issue was reported early 2017 by another user, but closed as “not reproduceable”. (when I find the link I’ll post the link here) I can confirm that the ProgressTimer has some strange behaviour on different devices (such as XI Redmi Note 4).
Maybe someone made same experience or just can post a solution for this!?!