What is "Failed: Crawl anomaly" in GSC ?

So I have had this website for months now and indexed for months and just today I realized that it was not indexed for some reason (had to be in last few days it got de-indexed) so I paste the domain in google search console to inspect it and resubmit it for indexing and it returns this error.

Indexing Request Rejected


Page fetch Failed: Crawl anomaly

What does this mean and why would it be happening ? Nothing has changed at all on this website in all this time including hosting, and no content added or subtracted. And the page is showing as "Indexable"

Ever figure this out? I've got the same issue!

Guess not, bummer!

I’ve read and tried that to no avail.