Bc2000 (for the BCF2000 & BCR2000)

I have two BCR's which i use as control surfaces for Reaper. Occasionally one of the two looses connection with the computer, although I almost never shut them down and only put the PC to sleep and not completely shut down to avoid complications.

Anyway, now it is that moment again. After a LOT of trial and error I got the two recognized properly in BC manager.

The problem is that one of the two refuses to accept the data that I want to send. I use exactly the same syx file but on accepts it happily and with the other I first get a warning "Do your eally want to send this global setup to your B-control?". When I click YES I see that the P-1 indicator on the B-control flashes for a moment and then the transmission stops.