I have been recording music from a DJ app on an iPad through a Pioneer mixer into my HP laptop and recording using Sound Force 12.5. The laptop uses Windows 10. A common problem I have is that after recording a number of tracks perfectly, all of a sudden subsequent recordings, when played back in Sound Forge straight after the recording (ie: I don't close the file), sound like they are about 15-20% slower. I haven't changed any settings, it just happens spontaneously. All subsequent recordings do the same - I have to reboot the computer in order to record at the correct speed again.
Any suggestions for what might be happening here and whether there is a fix?