Ok you create RG1 and RG2.
You assigned those to RL.
RL - RG1,RG2
You remove RG2. Reset the RL
But after this calls are being still routed to
RG2 using the same RL ?
Please try to recreate the RL again, provide CCM|SDL detailed trace during the reset and while calling.
If you can you can reset ccm.exe but this wont let us know the root cause.