One possible reason for your issue is that insider program settings are corrupted.
To fix this delete WindowsSelfHost key from registry.
- Open open regedit (push Win key and type regedit).
- Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost
- On left panel right click that key and delete it.
- Close regedit and restart (may require two restart)
- Check Windows insider program settings and relink to insider program if needed.