My Setup:
Catalina 10.15.7 (19H524)
MacBook Pro (Retina, 13-inch, Early 2015)
Boot ROM Version: 426.0.0.0.0 (Big Sur)
WD SN550 500G + NVMe adapter from taobao.com ( exactly same as sintech)
Temperature: 44 Celsius
Panic log:
https://pastebin.ubuntu.com/p/NSPK8MSKmC/
Info: default pmset settings latest WD SN550 firmware (211210WD) with latest BootROM and latest NVMeFix.kext
Does it happen every time your laptop sleeps?
No. It happened when I closed the case and leave it alone for about a day.
Have you tried NVRAM and SMC resets?
Yes.
Have you tried a fresh reinstall of Catalina, to see if the issue is still there?
No. But I flash the SSD firmware and change it back to my macbook.
Have you tried another drive/the original to see if the issue is drive specific?
I installed latest Lilu and NVMeFix. They doesn't work
Have you cleaned the contacts and ensured the SSD and sintech are properly seated?
Yes. I have checked the adapter is clean and installed correctly.
/cc
@AstroZero