Thanks for responding y'all. The 'window expired' error happens for every single game in the new games room - on my laptop. I tested it out on my mobile the other day and the games can submit scores (not fun to play tho). This makes me think it's an issue somewhere on my PC laptop, rather than with the account itself. I got pale moon/flash to work for one session on my laptop after this problem occurred. The security bit does worry me so I'd rather skip it.
What I've tried so far, no results:
-waiting 10s to submit game scores
-clearing my cache of cookies, restarting browser, logging out and in to account
-manage cookies > allow neopets.com > always (and i tried it with session too)
-futilely created a ticket with TNT
Is it possible a security setting is preventing the submitting? I didn't make any sudden changes with any kinds of settings/programs around the time this started happening.
Thx and cheers!