Can't log in to bbpress forum, but only with Opera
We have a forum using an old version of bbpress at http://www.ata.org.au/forums/ that I am admin of. I usually use Opera to log in, but since the last update a week or so ago I can no longer use Opera to log in there, it just drops me back to the login page (username and pwd are correct, no warnings).
I can log in with Firefox no problem, only Opera seems to be having the issue. Opera is currently version 51.0.2830.55.
I have deleted all cookies for the site, cleared cache at the same time, still no go. Oddly, I deleted a spam post this morning from a thread, and in FF it is gone, in Opera, even with a forced refresh, it still appears. It's as if Opera is caching the login page even after cache has been deleted.
All pretty odd, anyone come across this before or know of a fix?
Btw, I haven't had this problem in Opera with any other site, but the site mentioned has no probs with FF...
Edit: Have just updated to 52.0.2871.40 and still same problem.