Lustr2 randomly flashing LEDs when dimming

Are you certain that this fixture is patched correctly? If your fixture profile has a non-strobe parameter where the fixture thinks strobe should be, it may be engaging it inadvertently--this is a common indicator of a patch error. If you know the fixture is patched correctly, it is possible there is a hardware failure of some kind. I would lean towards the control card, but it is not impossible for this to be a problem with the power supply as well, so you would need to swap parts between fixtures to know for sure.

Are you certain that this fixture is patched correctly? If your fixture profile has a non-strobe parameter where the fixture thinks strobe should be, it may be engaging it inadvertently--this is a common indicator of a patch error. If you know the fixture is patched correctly, it is possible there is a hardware failure of some kind. I would lean towards the control card, but it is not impossible for this to be a problem with the power supply as well, so you would need to swap parts between fixtures to know for sure.