Hi, I seem to have the same issue, I found this video that seems to have fixed my issue I'm just waiting for the other bud + to charge.
https://youtu.be/gGHSAHuFmuM This method is 100% working plug in the charger to the case do NOT charge via wireless charge with the cord & leave the case open, make sure the light is showing as red if it turns to green keep liftingup the dead bud & putt it back until the light turnsred & stays red, & check the battery percentage via the wear app, earbuds battery will start charging.
Hope this helps.

