In the PlatformPlayInEditor.cs change this line string platformsFolder = $"{Application.dataPath}/{RuntimeUtils.PluginBasePath}/platforms";
to string pluginBasePath = RuntimeUtils.PluginBasePath.Replace("Assets/", ""); string platformsFolder = $"{Application.dataPath}/{pluginBasePath}/platforms";
Didn’t check if the problem is happening in other platforms, but if it is the same Asset path duplication issue it should work.
Thanks for reporting the issue, and for providing a workaround. I’ve been able to reproduce it on my end, and I’ve passed this along to the development team for further investigation.