Blackmagic Design recently released Camera 6.9.3 Update for the original URSA Mini Pro 4.6K camera. However, just hours ago they have temporarily pulled the firmware due to a bug relating to noise in highlights regions.
URSA Mini 4.6K Pro (the original, not G2) should revert back to the previous Camera 6.9.2 Update from 27th April to avoid any issues. Blackmagic Design will release a remedial update soon with a fix for the identified bug.
Camera 6.9.3 Update contained new international languages support and custom 3D LUT support embed into BRAW metadata.