One additional consideration: did you pair these devices securely? By default on a C-7, then will try to use S2 (I forget which level these support but think it is the one that asks for the DSK, assuming you didn't use SmartStart). Last I knew, drivers required special support for S2, which all the built-in drivers should be updated to support (for relevant devices), but this is all probably news to Inovelli and their custom drivers.
So, until they either update theirs or verify that they should work as is, I'd suggest pairing these without S2 or (I'd only recommend this for devices that only support it and need it) S0. You can do this by unchecking all the security options when Hubitat asks. If you want to pair them with S2 in the future, you'll have to exclude and re-include them, but my hunch is that this may explain why they aren't working right now.