Why doesn't the code from version 0.49.15 work in version 0.50.16?
And add the new .exe version.
You'll need to be more specific about what's not working.
The error text is too long to paste here.
But I can provide a .vcsgm file.
Can you .zip it and add it to a bug report here:
https://github.com/haroldo-ok/vcs-game-maker