I have the UH25 Max and was also experiencing the NVME (WD SN750) disconnect issue. What seems to have worked for me so far is adding a 10w Apple charger with a USB A to USB C cable. Haven't had any disconnects in almost two days and a little over 1tb of data downloaded and then transferred to NAS.Yep, that is also possible.
But also UH25 Pro is different hardware than UH25 MAX.
Is there anyone who use UH25 MAX? Can you please test M.2 drive and add comments in this thread?
I tried a USB C to USB C cable with a 20w charger and was still getting disconnects.
I also upgraded the firmware to the latest version. A windows machine is needed for the upgrade.