I'm on 5.6.3 and the upgrade assistant is telling me to reindex .watches and .triggered_watches - but this fails with "current license is non-compliant for [watcher]".
.triggered_watches I just deleted, but .watches index fails with "error": "This endpoint is not supported for DELETE on .watches index.".
Any tips on what to do with the .watches index so I can upgrade?
I got a similar problem (not able to delete the .watches index). I ended up with a nasty workaround by removing in data dir the directory corresponding to the .watches index.
This is a nicer solution - you just have to make sure that action.destructive_requires_name: true is not set in your config file (I just commented it out for the delete).
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