Space Tree main page v2 won't load unless you right click and click play

[LimozeenFan20X6]

Describe the bug

The menu won't load unless you right click and click play, but on https://web.archive.org/web/20050515030735/http://spacetree.com/ play isn't on the right click options so you can't use that workaround.

Expected behavior

It should load and show the Space Tree logo instead of staying on the Keentoons "loading..." animation.

Content Location

http://spacetree.keenspot.com/main2.swf

Affected platform

Browser's extension

Operating system

Windows 10

Browser

Firefox 133.0.3 (64-bit)

Additional information

No response

[LimozeenFan20X6]

I tested this flash with https://ruffle-regressions.github.io and found out that this bug started in version 2023-06-19. Earlier versions load correctly.