UPDATE: I was able to isolate the source of errors and now my suspicions have been confirmed indirectly: error cause was ultimately the cable that connects the USB 3.0 front panel connectors to the motherboard. Various other USB 3.0 flash drives from Transcend among others and also more WD My Passport hard drives had with the cable absolutely no problems, the stick but already. It must be observed that the stick is very sensitive to problematic cables and / or connectors. The fact that the spelling mistakes in the operation remain undetected and are therefore only noticed when the data is needed again, of course, leaves a slightly bitter aftertaste.