webOS Dev Manager

I'm trying to run the amd64 appimage from https://github.com/webosbrew/dev-manager-desktop/releases/tag/v1.99.13 But all I get is a completely blank white screen how can I fix this?
GitHub
What's Changed

Allows Text Selection for Dumb Shell by @mariotaku in #318
Use Raw TCP Connection to Fetch Dev Key by @mariotaku in #319
Updated Angular by @mariotaku in #326
Cleaned Up Meaning...
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