[BUG] MMU Overcurrent kept triggering whenever powering back on right after powering down

[5jvm0u4]

Printer model

MK4S(Stock&New)+MMU3(upgraded from MMU2S)

Firmware version

6.2.1+8833 & 3.0.3

Upgrades and modifications

No response

Printing from...

Nothing

Describe the bug

I consider it a bug because if I power down the whole system for 5 minutes and power it back on there's no overcurrent problems, and also, the beeping is really annoying, please limit it to five beeps or under, it's enough, I know there's a problem when my whole screen turned red.

How to reproduce

Everytime when I power back on right after powering down, through the power button on the power supply, it happens, and everytime I wait for 5 minutes, it boots without any problem

Expected behavior

No response

Files

No response

[bigman212-help]

Yep, I'm on my 4th buddy board and 3rd mmu board and pd board. Not sure how I'm going to get a refund on my mk3.5s since it's hard to return the items without destroying the printer and mmu2s doesn't work on the mk3.5s. Shame on prusa for selling a faulty product. Will probably go with a charge back on Amex and switch to Bambu.

[bigman212-help]

Sometimes it's 5 minutes, I've gotten one where even after 24 hours it wouldn't boot and I had to take out the printer from my lack enclosure and unplug the whole mmu