We can do something to attempt to get these to sync up. I usually just disable the LED on the “source” switch so that it is always off, but there is something we can try. First, you need to make sure that parameter 12 is set to 11 on one of the switches. This is important so that z-wave commands don’t get in a loop scenario. First change line 843 from:
return [1,2,3,4,5,6,7,8,9,10,11,13,14,15,17,18,19,20,21,22,51,52]
to
return [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,17,18,19,20,21,22,51,52]
Then, on one of the switches (probably the source switch is best) set the Association behavior parameter to 11.
After this is complete set the associations both ways. So currently you have it set:
Group 2 & 4: Source ----> Destination
Set up more associations so that it looks like this:
Group 2 & 4: Source <----> Destination
We may also need to do this with group 3, but try it out with just group 2&4 first.