unicable problem "sid not in pat"

hi, i recently replaced my quad lnb with an 

and hooked it up to my duo2 with 4 tuners.

works nicely.

however, once in a while i get a "sid not in pat" error message when i zap to a channel. rezapping "fixes" the problem.

i suspect there is a problem with the e2 unicable implementation... missing retry or so.

has anybody seen this problem as well? is there a chance that an expert has a look at the code an see if a fix or workaround could be done.

thanks.