A long time ago, I got some error message flashing with no apparent issues otherwise. I reloaded the firmware and it went away.
What you are describing sounds a little more concerning.
I bought a bulb from these guys, pretty easy to replace the bulb instead of getting an entirely new assembly.
The one I got had OSRAM on it, the same as the original. The way it is listed now, I am not sure if it is a third party bulb.
A lot cheaper now, so I am a little suspicious. In the past, the listing was clearly OSRAM.