Hi there!
I've uploaded a build for you called " 1.55 Milo PC" that has a button on the main screen of the main menu that you can click and it allows you to jump straight into Milo's ending.
I found where the issue arose for Milo's ending in the original copy and will be putting out a fix for that shortly (once I get out of the ER... it's been a bit of a long day haha;;)
Again thank you for letting me know about the bug!