Hi together,
I just bought a TL-SG2428P for my office. Apart from the fact that the installed fans are an imposition in terms of volume, there are problems with the current firmware. 
Immediately after installation, I upgraded from the factory version 4.0.1 to TL-SG2428P(UN)_V4_4.0.6 Build 20230602 and then rewired my network. Then after the switch went live, my two PoE cameras (Reolink RLC-520A) stopped running. I couldn't explain this, because they were previously connected to a PoE injector from TP-Link and ran perfectly. So I went troubleshooting, dismantled the cameras, connected directly to the switch with a Cat 7 cable (length 15cm), without success, the cameras no longer ran. 
The switch offers the possibility to start a diagnosis. In the diagnosis then came out funny messages: 

Pair A: OpenShort
Pair B: OpenShort
Pair C: Short
Pair D: Short

Seemed strange to me, they had worked quasi 1 minute before. So I changed the port, from port 13 to port 20 and the errors were suddenly different, although I only changed the port.

Pair A: Normal
Pair B: Crosstalk
Pair C: Crosstalk
Pair D: Short

And I only changed the port... everything somehow couldn't start, so today I rebooted the whole box with the backup image (firmware 4.0.1) and lo and behold: everything works flawlessly, the cameras go online immediately and run flawlessly. So there must be a problem with the 4.0.6 FW - however the error messages are misleading. 

Maybe it will help you to find the bug and fix it. Greetings