I cannot upload some old screenshots from my games

[snow in summer]

Title,

I thought this was a problem with Steam, that i cannot upload any picture taken in games, but, this seems to happen only with some games (and usually pictures that i've taken some months ago)

To be more specific, if i take a screenshot right now, it will let me upload, but, if i go to my "screenshots" tab on Steam, and i select a game that i've played few months ago, i cannot upload any of the screenshots that are there

Does someone had this problem in the past? what could i do to solve this?

Thanks and i hope i've explained myself correctly (English is not my native language)

[snow in summer]

EDIT: It still gives me error but when i check my activity, i've uploaded all those screenshots (even if it failed)

[Dranak]

as steam user First we thougth it look like 2000+ picture issue then it was more a clear cookie and webcache, again its like a bug with it , to many maybe ( after some removed them it work again ) this s a nightmare to even tell whats this is about.

i cant say this is about older pc that cant handle the many picture , and even that is a good guess, if you goto screenshort menu handling then i bet many are blank untill loaded it look like that , but only you have the clue here.

other helper says you have apox 22gb or something like that to steam personal data in the cloud, maybe that is part of the problem. ( + per game what game devs, think game should have.

[Dendy]

I think VPN can help you with that