My new game Test Run recently started home recommendations. The thumbnails were performing relatively well, (first thumbnail ~10 min session time and 1.25% qPTR avg) but then since yesterday the first thumbnail has not received a single qualified play. It has been nearly 2k impressions so no plays despite a previously reasonable qPTR seems highly unlikely.
(First thumbnail is blue line - as you can see, steady decline)
First thumbnail was at 4k impressions yesterday.
Did the algorithm drastically change the audience it was showing my game to?
Or is this potentially a bug?
How do I fix this?