And gapless works with other players?
What are your settings (Screenshot)? Maybe provide a sample to test?
Can you try WASAPI as Player not Bass engine?
EDIT:
I tested your files and there seems some kind of overlap. Definitely no gap for me. But this only seems to be a problem with cue files. Tested single mp3's and I did not see an issue.
Same result using WASAPI
Also, can you have a look at my log files? 1 of my machines crashes when changing to the next track.