What’s the most frustrating bug or issue you’ve dealt with recently?

I’ve been spending a lot of time debugging my own projects recently, and I keep noticing how messy the process can get.

You fix one thing, something else breaks, and suddenly you’re not even sure what actually caused the issue anymore.

Sometimes it’s something simple that takes way too long, other times it’s something deeper that just won’t surface.

Curious — what’s the most frustrating bug or issue you’ve dealt with recently?

Was it something small that dragged on, or something that was genuinely hard to track down?