G'day!
Samaria here to report to your the briefing of Day 2. Thing is, I reported early.
Yep. Upon completing Level 5016, I was stuck on the level complete screen. I can see it is looping.
I am able to switch to the Windows app, and I noticed that my completion is indeed credited. I completd the next two levels there, and with my double colour bomb. When I switched back to mobile, I was greeted that I lost my double colour bomb, but I can still use the double colour bomb in Windows.
I completed all of the remaining levels in one try. I still kept my win streak, with the affected level excused.
Tournament
My evaluation has been changed. One of the high win-streak players who had a slight lead over me, in which I eventually overtook, went back, and took back the lead, including the hex0r I saw yesterday.
I don't know if he hexed, but he did complete on the order of a hundred levels last day.
Strategy
I will contact support once again, and play normally. I have to be vigilent in the end. My expected score for this round would be 50000, and I would put that near the end to establish a "hex barrier" (which would offer a 20000-score protection).