Has anyone had that problem?
When I try to sample with Direct (Source: Main L/R for example), I can see a waveform being recorded. When I stop the recording and try to preview it, I can’t hear anything. And after saving the sample and assigning the sample to a pad, the sample still can’t be heard (SMP on the TRIG parameter page is on, all Volume parameters are also on).
Please, if anyone knows anything, help would be much appreciated!
Can you hear samples loaded from other sources?
No,
tried both sampling via AUDIO L/R and each channel separately…
Strangely two days ago, I could load up another project, in which the Direct sample from the previous project was suddenly hearable and usable. Until yesterday 
Three days ago everything had been fine.
It seems to me like some kind of software bug. Would a factory reset solve the issue?
Can you load a factory sample into the slot and hear it?
Yes, loading preset sample onto a pad, and recording the pad via direct works!
That’s pretty odd behavior. A factory reset as well as following your signal path again to ensure everything is on and up couldn’t hurt.
I just did a factory reset, and whatever the problem was, it magically works now!
Thank you for your help 