I only get legacy cached files served, and I just can not get it fixed. I have tried many times to reinstall, and tried all the advise that I could read. Spend so much time already.
When looking at the HTTP headers as per the FAQ, I see:
WP-Super-Cache: Served legacy cache file
When looking at Debug log, I don't see anything wrong, it says:
Serving wp-cache static file
Getting this to work properly will be so greatly appreciated!