In the next update AV1 support will be disabled so installing AOM won’t be needed anymore. There will most likely be a separate build with AV1 support which I’ll add here for the people who do use it though.
When exactly are you changing it to false? Whilst a video has been loaded? It’s difficult to know what exactly went wrong without seeing more of the code. Feel free to hop onto the discord server as that will probably be easier to troubleshoot where things are going wrong.