Watches not charging on some of our apple chargers after 10.1.1 update.

Our two watches will charge to 100%, but will drain quickly starting the day after this latest update. Its still 10.1.1 but might be a different build for it. They will now only charge on one of our three chargers now after the update.

Besides draining fast, our watches will no longer charge on 2 out of 3 of our Apple branded chargers. It started the night of the latest update for both of our watches. I called support and was bumped to senior support. We unpaired my watch from my phone and re-paired it. Did NOT restore it from backup, but started fresh. No change in speed of discharge or using the chargers.

We are nowhere near an Apple store, so are going to try a certified service center to see what they think.

BTW our battery healths are both in the 90-100% range.

Any ideas why two of the three chargers will no longer charge the watches? One of the ones that won't charge the watches wasn't even plugged in the night of the softeare update while our watches were set into the other two. One of those still charges, the other won't.