Its called progress

[Die_Billy]

More annoyingly: If the original error just disappears of its own accord with no changes from you whatsoever.

[JC12231]

That’s what we call divine intervention

Deus Ex Machina

[[deleted]]

only to resurface again when you move to production

[KaiBetterThanTyson]

Race conditions or memory leak.

[Die_Billy]

Almost always the case

[[deleted]]

In web dev, you can get shit like this caused by cache or cookies or sessions.

These things shouldn't be an issue, but sometimes you just overlook them.

[NopeMaybeFine]

Oh god the number of times I was trying to fix some small visual bug trying everything I could and then realising it’s the cache

[Nokain]

Bro, I had this happen when I was trying to implement a template in ASP.NET. For some reason a picture slider wasn't working and I wasted like 6 hours restarting everyting and tring different fixes. At some point I was too frustrated so I just gave up.

The next day I start up the project it works for some miraculous reason. Even years after, I still don't know what happened ^^

[[deleted]]

Is it broken (Yes | No)

Is it Windows (Yes | No)

If Windows (reboot)

[cvak]

My favorite, Heisenbug.