So we've been experiencing some weirdness with ConfirmEdit captchas generation after some refactoring of the maintenance scripts to use some methods that should be more performant.
I'm guessing most of the issue will be with MW itself, but we've seen deletion of all but 1 file in the store, for no reason, when deletion operations are not being run
Can someone have a look at the logs since the start of March for mwstore://global-multiwrite/captcha-render for any errors that may be relevant whilst we also poke away at the MW side too?