Epos: Getting to the save menu will cause it to go into an infinite loop

[WyvernB]

Describe the bug

Tested on Ruffle Nightly 2023-02-20
Epos SWF used: 540610_epos202c.zip

This is what the game looks like in the Ruffle Demo.

Epos.-.Demo.mp4

Expected behavior

This is what the game looks like when I launch it using Flashpoint.

Epos.-.Flashpoint.mp4

Affected platform

Online demo

Operating system

Windows 10

Browser

Chrome 110

Additional information

No response

[n0samu]

The error is:
ERROR run_frame:run_all_phases_avm2: ruffle_core::avm2::globals::flash::display::movieclip: Attempted to add frame scripts to non-MovieClip this!

[n0samu]

This was fixed in nightly 2023-05-28, probably by #11084.