I thought of this after a recent bug I found. I use Vivaldi browser and recently it updated. After the update my mouse cursor was not visible when within the browser window. Other programs worked fine. I tried visual studio and steam and epic game store all had my mouse, Vivaldi didn’t.
I closed all instances of Vivaldi via task nanager(was unable to click the x) and restarted it. That fixed the bug and I haven’t been able to replicate so I don’t have anything to submit for a bug report. Just a really strange thing.
What have been your weirdest bugs?


This was 15 years ago and I was only on that team for a year so some details are fuzzy. I just remember the odd length filename distinctly. We never found a pattern, not that we looked super hard. We did check the usual suspects like Base64 encoding and big vs little endian and such but nothing lined up. The file would just be garbled nonsense. No whitespace and every character under the sun in a massive block.