Issues first arose in 2020 when video game composer Tommy Tallarico recognised the now iconic sound as his own creation, originally from a game called Messiah. More to come on this.- Roblox July 26, 2022

We plan to expand our Avatar Shop with a whole range of both old and new sounds in the future. Related to sounds, due to a licensing issue we have removed the “oof” sound from Roblox and have created a replacement default sound which launches today. It's been replaced with a similar default sound but, as announced on the Roblox Twitter (below), a whole range of new sounds, both old and new, will be released into the Avatar Shop in the future to make the transition away from the classic 'oof' more palatable. It would appear these complications are now officially too much Roblox's development team, however, which has now announced the 'oof' sound is no longer in the game. The simple soundbite, a second-long 'oof' sound that plays when a player dies or resets their character, has proven surprisingly awkward due to copyright claims in the last few years.

Roblox oof face