Error CSA-Rainbow

I have this problem.
When trying to join big tables I get this error ...

Found 4C905D0CDh duplicate chains
ERROR: 4C905D0CDh duplicate chains is not a multiple of 4000000h

to reach approximately 99.98% of the union and the error file also automatically deletes the union.

Someone could fix it? Thanks!

(Google translator)

and I tried a GTX 770 and a GTX 780 and the error persists