I thought that, because no files had to be repaired. Had the exact same behaviour again yesterday, with files that were downloaded and didn't have to be repaired when they were finished. This makes me believe, there might be some limitation of the nzb play feature, that I am not aware of.
Since I have a file, that I cannot stream right now - maybe someone can tell me, if the nzb play option is limited to files, that are rared like this:
.rar, .r01, .r0* ...
Because atm I am downloading files that are named like this:
.part1.rar, .part2.rar, .part3.rar
Right-clicking and pressing "play" doesn't seem to do anything here, not even a log message.