Hi
Hi, I never used UE4 HTML, but one thing that you can try is to edit the .uplugin file and add “HTML5” in the “WhitelistPlatforms”
Probably you will need to copy the plugin to the project folder too. There is a similar problem described here:
https://forums.unrealengine.com/t/mssr-modular-snap-system-runtime-plugin/122014/142
Another thing i can think of is the multithreading, try not to use “async” methods to see if it changes something