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Our team is currently on holiday, so support will be limited during this period. Response times may be slower than usual, and some inquiries may be delayed.
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The comment form will often show as follows, so users logged in or not, can't comment.
If I click on "Post Comment" it starts working again.
If I reload the page the issue comes back.
I've already deleted all caches (WP Super Cache and Redis), but the issue remains, at least on the desktop website.
I forgot to mention the issue looks to be semi-random since some people can still comment.
But I've also gotten several complaints about the comments not working in the last few weeks.
It looks random. It happened to me too, but not anymore. It comes and goes...
I also faced the same. I think it has been fixed now.