Factorio Forums

When the current hand crafting item is finished, there is a subtle sound played usually. Sometimes it doesn't play. I have attached a clip of when I noticed it happening below. Watch very carefully: when I finish crafting burner miners at 6s, the sound plays. But when I finish crafting the next batch of miners at 26s, the sound doesn't play.

https://www.twitch.tv/zaspar_/clip/Aliv ... OhpFJA5SjK

We're baking a cake right now so I don't have time to properly test but my first guess is that you've run out of sound resources dedicated to UI sounds. You're simply playing too fast (It very well might be something else though)

Edit: I can reproduce it by drag dropping coal, same as in your clip. And I thought 16 UI sounds would be enough for everyone forever!

The issue is now fixed for the next release, 2.0.31. Thanks for the report.