Failed to load community plug in

I’m having problems installing and enabling some (but not all) community plugins, notably Note Refactor and and PDF to Markdown. They don’t seem to install fully. They don’t show up in Installed Plugins section initially. If I quit Obsidian and re-open, they show up, but are not enabled. When I try to enable them, I get an error message “failed to load plugin”

Steps to reproduce

Click install on community plugin.
Quit Obsidian.
Open Obsidian and go to Settings/Community Plugins
Enable plugin

Expected result

Plugin to be installed and enabled without having to quit Obsidian.

Actual result

Failed to load message

Environment

  • Operating system: Mac OS Big Sure 11.2.1
  • Obsidian version: 0.11.3

Additional information

Contact the authors of the plugins