Not exactly sure how this happened, but was playing a game of slasher and got the katana, and then suddenly all left click inputs started triggering weapon alt-fire rather than primary fire. The bug persisted across weapons until I was killed, after which things returned to normal. Don’t think it was due to left click and right click inputs being swapped entirely, as I was able to click between tabs in chat with left click without issue.
This one was a little tricky to figure out. If you’re using the toy hammer secret laser, it’ll swap your inputs and if you do it while the weapons get switched out, it’ll stay swapped.