A long time ago I had this exact failure with a Gipiemme bottom bracket - drive side, Italian thread. The BB was stock on a relatively new bike and had not been touched. Root cause: the quality of the rest of the Gipiemme components on the bike were not up to the standard of the contemporaneous Campagnolo parts. That is putting it mildly.

Related cause: given the Italian threads on the drive side, assemblers would be motivated to install them - tight.