Hmmm, I think I see the problem. There's one setting where its generating an error (incorrectly) if you set the Param B Target RB to "Any Node" (which is also the default). When this error occurs its also setting the Update Frequency to "On Execution" - to avoid flooding with errors - which is why you arent getting any updates. I'll look to get a fix out, but it should still work in this version with a bit of tweaking if you avoid using the "Any Node" setting and keep an eye on the Update Frequency.
Your're plugins are fantastic! It's the next best thing to coding w/o actually knowing how to code! VUML is indeed a very appropriate acronym! All the finicky business is nicely constrained in a GUI so you can focus on program design rather than the actual coding! Makes me wonder why UML isn't more commonly used (that I know of)... Anyway, as far as the collision business, unfortunately, I need to use "any node" because I don't know what I'll be banging into lol. It's ok though, I found a work-around using enable/disable of dummy plugins to act as "intermediary state indicator" between the collider and VUML. Works like a charm!