Thanks for the quick resolution of this issue.
Unfortunately, I now seem to be caught in an eventually ending test cycle where the window that loads the data keeps reapearing after uploading the specified custom amount. Test #1 of 25 → does not increase either, nor are the tests recorded. Eventually the cycle will be interrupted by an Error 101. (However, right now, it has gone over 14 repetitions after which I reset it.)
Settings that encountered this error: Upload; Every 5/10/ Minutes; 25 times; 15/10MB
Settings that did not encouter this error: Upload; Every 15 Minutes; 25 times