Cannot select a custom skin on Poco X6 Pro (MCPE)

When I select a custom skin, the app reloads and asks for me to select an .PNG of either 64x32, 64x64 or 128x128, but the file I selected was just that, a .png with 64x64 pixels

Steps to Reproduce:

1. Download a skin
2. Open Minecraft 
3. Try to apply it to your character 

Observed Results:
It doesn't work

Expected Results:
The skin should be applied 

Screenshots/Videos attached: [please attach an image or short video]

Notes: apparently it's an issue on the Poco X6 pro, I have seen another comment on the play store of someone with the same phone having the same problem 

 

A friend of mine has a Samsung phone and he could do it just fine