I'm using the a IPad Mini 4 with no other programs other than Mail in the background. I'm using a sunshade as well. The outside temp was 87.
Granted this is an improvement, but it is still not right. Yesterday, on another forum, it was noted that the error occurred with the new IPad Pro.
WOW!!!!!!!!!!!!!!!! Maybe I am simply lucky. After ronin RS211 pointed this out, I did some extensive tests. On the Spark, Mavic, and my I2, all with no issues. This is quite strange.