…and I have the impression that Musicbee goes back a second repeating the track for 1 or 2 seconds. Is this possible? Thanks
So you are not sure if this is actually happening?
If it is, a lot more details need to be provided.
Such as the exact MusicBee version, location of files (network?, external drive?), audio codecs of the files that suffer from this, installed plug-ins, sound device, is it replicable, etc. etc.