Hi. I purchased a couple of BT 630 Bluetooth modules back in January of 2020. They've basically just been sitting in my stock until yesterday, as I now have one going in a saber build.
Unfortunately, neither of them seem to be cooperating, and I've tried both modules with multiple Proffieboards.
They are recognized by apps on both Android and iPhone for testing, but both fail to actually start controlling things with a pop-up error message saying to check that it's wired correctly and that I am in range.
They are wired 100% correctly, and configured properly as far as ProffieOS config settings go.

Does anybody have any past experience to share or suggestions as to what might be the issue here?

I spoke with Shtok Custom Worx who developed the app and he suggested it's just old hardware that has since been improved, and/or to use the larger BT909 instead. However, this is not a new application of the product, as I'm pretty sure I've seen many builds successfully using these, however not necessarily Proffieboards, mainly Plecter labs boards with R. I. C. E.
connections. I also asked Fredrik at Proffie who sees nothing improper about the setup.
What are the chances I have two Bluetooth modules that are just bad?