Heya, my first post of possibly many to come!

I recently upgraded gear from mixtrack pro to a DDJ SB. I've found a decent mapping to go with Traktor Scratch Pro. However, sometimes the tempo gainer gets stuck (5-20 seconds) and the auto/manual loops do not work. Does anyone have a suggestion on how to fix this and/or where to find a complete mapping with all functions working?
Also, is the tempo gainer just a glitch or w/e?

Thank you in advance!!