vManager Failing due to BDARGF and WKUNLK error codes

I can run a regression with the count variable equal to 1 or 2 for all tests, without failure. I.e. test test_name {count : 2;}; inside of a group (.vsif script). However when I attempt to increase this value to say 4 or 16 for example, I get those error codes (BDARGF and WKUNLK). There seems to be little to no documentation about what these mean. I have ascertained that it's related to being unable to obtain a lock on some resource, but what confuses me is that I am using the "-R" argument in the runs_dispatch_parameters section of the .vsif script. I was under the impression this would prevent recompilation and allow each test iteration to run in its own workspace?

There are a total of 54 tests in the current regression, so not hundreds or thousands.

I'm not sure what other information would be helpful.