RB 4.10 destroyed hid mode and recording...is it possible to downgrade?

4.1.0
..so thanks for the upgrade that destroyed my recording function an made my Cdj-2000 not communicating properly with the program and my dam-2000Nxs.
..And i really think that the sound got distorted also.
...so to the problems that occurred after the upgrade:
Difficult to start Hid mode...i had to pull the usb in and out,restart players...and when i finally got it working,my recording doesn't work..i have no peaks..it records only silence...After a while player 2 stopped showing the light that simulate spinning and the display is frozen on the cdj.So i Rebooted everything and got going'...and after a while player 1 had the frozen display..but spinning wheel light is working. is it possible to rollback versions?...i have a gig next weekend.My system is:
MB pro 15 i7,16gb ram osx 10.11.4
2x Pioneer Cdj-2000 & 1 Djm-2000Nxs...I'm not in a good mood right now...