ST and Philips HUE

So after the last update to ST, a set of my HUE bulbs seem to have lost functionality in both the HUE app and ST app. I have about 16 GU10 Innr bulbs linked to HUE. 4 of these bulbs have suddenly stopped responding.

First I thought that maybe a software update broke the compatibility between the Innr bulbs and HUE/ST, but that doesnt seem to be the case as 12 of them are WAI.

I see that there are a number of old threads on this dated back to March, but nothing recent. Has anyone else experienced this? I will try dropping those 4 bulbs from the hub tonight and re-adding them to see if it fixes the problem.