I recently added Tapo L535 multicolor bulbs to my home. They show up and are controllable in the Tapo app, and when I first added them to HomeKit they worked as expected. But after that he first day they failed in the Home app with the "No Response" status. If I cycle the power to the bulbs they may respond in the home app for a few minutes and then they revert to "No Response."  I tried removing the bulbs from HomeKit and restoring them to factory settings and after re-adding them to HomeKit they respond for a while and then revert to "No Response."  The bulbs appear to have a reliable, strong WiFi connection. 
 

Without a connection to HomeKit these bulbs are relatively useless to me.  Is there a plan to update the firmware to resolve this issue? My bulbs current firmware is: