Every time I’m in Desktop Mode this pops up. It seems to be spawned by Steam Proton, though I’m not sure why since it happens even before I launch a game or software. Can’t figure out what exact process is running it. Hitting install either fails checksum, or nothing happens after it finishes the download, and then it just pops up again. Any ideas?
Sorry for the late reply. I haven’t had time to try this 'til this morning. The results are that while I haven’t gotten the issue fixed, I at least know what’s happening now.
So what’s happening is similar to what you said. I have an older Custom Proton installed for some picky games, and its included Mono install is old. Desktop Steam doesn’t seem to like this for some reason and keeps trying to update the Mono installed, but this keeps failing for some reason. I tried messing with it but haven’t figured out a solution yet. I’ll have to try more things later.
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