After not playing since a few updates ago, I went to start a new world with the 1.19 update. After setting my world options I realized that my player arm was white and upon pressing F5, I saw the whole skin was whited out. I used an online skin grabber to get a fresh download of the skin file, thinking it was an issue with the file but after uploading the new file and loading in to the same world, nothing has changed. Capes and things off the "main" layer of the model are intact. Picture attached. Inside a skin editor, it does not show the white. I am using the slim character model, and upon testing, the same issue is present on classic model. 

I checked the png in my file explorer and it is indeed transparent where it should be. Going back to 1.17 made it load for a second and then go white again. 

After doing a fresh install of Minecraft. it still has the same whited out result.