I believe this may be it! I have not a single smart bulb paired with my Hub at the moment so I never would have had a reason to look in bulbs (nor did I). @NotTheHerbie I think you may have figured out actually what was happening when the devices “vanished.”
@EricM_Inovelli after updating to the 2020-05-05 GitHub driver then commenting out the capability ColorControl line I was able to utilize any device using that driver in apps as would be expected including group/scene/rule creation/edit, custom commands, and all driver features I was able to test.
Update: after reverting back to the real 2020-05-05 driver I can confirm that indeed any devices using that driver did move over to the bulbs list. I made a backup with the commented version of the driver in place so I just did a simple restore back to that working state. I did not have time to test if editing the code again would leave me with working apps and no silent rule corruption.
It is late here on the east coast and I just am getting caught up with these new developments. I am going to leave this modified 2020-05-05 driver in my system for now and will continue testing tomorrow.
@EricM_Inovelli, @NotTheHerbie thank you both so much for moving this forward! Please let me know what/if you would like me to test on my hub next.
– Richard