If you're like me and you suddenly found your IE browser going directly to Edge, here's the way to get around it so you can still use IE for LEED Online:

1. In MS Edge, click on the 3 dots in the upper right hand corner
2. Click on Settings
3. Click on Default Browser
4. In the box labeled Let Internet Explorer sites open in Microsoft Edge, change this to NEVER

This will change your default back to IE, so the Adobe plug ins will work correctly in LOL.

Of course this is a temporary fix until IE goes away for good in June 2022.