Im kinda lost. Im not sure why on Layout is just shows Limited section of the object like it was on mask while on Modeling is shows the object completely.
On modeling the object is ok.
Here the file so you dive in. Thanks
https://drive.google.com/file/d/1ld4AJKD_xWs9actJQT3nvtem_44qFe1l/view?usp=sharing
I’ve got no permisson to download and check your blend file… though have you tried pressing Alt+H to unhide? (when the mouse corsor is in the window with hidden mesh parts).
Sorry i updated it now bro. should be able to access it now. Yeah already tried to unhide it no luck.
Found the fix. Press Alt B