When letting the web terminal do the upload, the named file under 'apps' is zero bytes and the file contents end up in 'main.py'

In 2.0.3 I could download main.py to my PC, rename it, and use web terminal file manager to upload it into the apps folder, and all was well.

In 2.0.4 however, it almost seems like the device 'My Apps' menu/list is unaware of this file, even though it is listed. When selected the device runs the .py file listed after the one I selected instead.

I've also had the variable undefined errors but I think that is a different issue. Maybe not?
One example is copy/pasting the mpy code to a windows computer into say notepad.
The device requires unix style line endings, not windows line endings. It also requires no blank lines to exist.
(This is why I would copy the existing 'main.py', as it was already formatted correctly.)

Otherwise, most times the upload just doesn't work at all. I too have not found a pattern or submitted a bug report due to this lack of info. I wasn't even sure it wasn't just me :)
Hopefully someone more knowledgeable can chime in