Re: Build not saved

@GremlinGamerGirl  A dxdiag doesn't contain any sensitive information, which is why we're allowed to ask for it on this forum.  But if it would make you more comfortable, I could let you know when I'd seen it and you could take it down (editing the post gives you the option), or you could upload it to a third party and PM me the link.

AVG can mess with Sims 4 data, but it's almost always sufficient to set the proper exceptions.  Even if you have already, please double-check the settings, and make sure you have an exception for EADesktop.exe.

https://crinrict.com/blog/2020/10/add-exceptions-to-anti-virus-programs.html/#avast

I still think it's worth spending a few minutes building in that save and then seeing if you can save your progress, both with "save" and "save as."  You could just look at the saves folder immediately afterwards to see whether the new save is present.  If it's not, that's one issue; if it does show up and disappears later, that may be another problem entirely.

The hardware usage you've reported is high but not unreasonably so for Sims 4, and it shouldn't have any impact on this issue.