Do you have the Enable Latency
option enabled by any chance? If so, then yes, a race condition here is pretty likely because while waiting for the latency in returning the first match, one or more additional matches will not see the rule as disabled because the first match hasn't completed.
I will fix this for the next version such that the likelihood of a race condition is much lower.
Thanks for reporting this!!
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items