The track is not locked
I Imported the audio file from a folder I created in the Cubase directory through file browser
I don’t know what you mean by “locked for processing in you system outside cubase”
Reverse works here on audio events as expected (and I get the little waveform graphic in the top right corner too) - but, I did notice that it didn’t work on an event that was using a spectralayers extension. Any chance you used an ara extension on the event?
Have you tried bouncing the crash wav before reversing it? Maybe - as Glenn mentioned - the file might be in a folder that requires admin rights, permission etc. When you imported the file, did you import as a copy into your project folder?
Also, try turning off musical mode for the file in the audio pool. Do any other offline processes work ie normalise, gain, applying plugins etc?
It’s because you have used time stretch/audio warp on the event, as can be seen on the other symbol in the top right corner.
Bounce the event, then it should work.
I installed cubase on my D: drive and got a tip in another thread that cubase is only supported in C drive so after re-installing cubase in C: it worked like a charm