Hey there, I found a fix hahaha.
This problem is caused by a broken asset in the Metahuman Creator, which leads to a series of errors between the different versions. I was trying to use my Metahuman on UE 5.2, but the current version is 5.4. So, what you need to do is go to Metahuman Creator and select the current version. Then, you’ll be able to see the affected asset. If you choose a previous version, you’ll get an error. After that, you will be able to delete the affected assets, and a few seconds later, you can update your Quixel Bridge. Then, the assets in your “My Metahuman” tab will appear. Hope this helps!