TB5 port compatibility issue with TB4 enclosure on Mac mini M4 Pro

I just bought an ACASIS TBU 405 to expand my mac mini m4 pro 512GB. I also ordered 2GB WD black SN700 but it is still on this way. So, to test the ACASIS enclosure I throw in a 512GB Samsung PCIe 3.0 drive for now.

1) The drive, ACASIS TB4 enclosure and the TB 4 cable that comes with it work fine on two front USB 10GBs ports

2) The combo does not work on any of three 3 TB5 ports at the back. The drive was first mounted but then disconnected after simply browsing some folders.

3) I tried the combo on my Thinkpad X1C Gen 11 TB4 ports. It works fine as well.

4) Just out of my curiosity, I replaced the TB 4 cable from ACASIS with a USB 3.1 cable from another enclosure. It works fine on TB5 ports as well. Of course, it is slow.

So, I am scratching my head now. I wonder if new mac mini m4 pro has some TB5 backward compatible issues with TB4 enclosure and/or cable.

To eliminate cable issue (which I doubt since it works fine on my Thinkpad), I ordered a 'cablematter' TB4 cable from Amazon. Will test it out once it is delivered tomorrow.

Any advice is greatly appreciated!

[Re-Titled by Moderator]