'Improved Plugin Installation' not working in multisite

I don’t know if there are any special things I need to do to get it to work, but this plugin does not work in multi-site. I’ve tried it on 3 different MS installations now with no luck.

This isn’t so much out of annoyance as just wanting to let somebody know… MS support would be awesome. It shows up fine in the ‘Add New’ part of the Network Admin dashboard, but when you click ‘Install Now’ nothing happens (plugins do not install). It would be awesome, seeing as 1 out of every 3 installs I do now is multisite.

Thanks for the work on this plugin– it saves me a fair amount of time, but would be even better with MS support. Thanks!

https://www.ads-software.com/extend/plugins/improved-plugin-installation/