[WPMU DEV Dashboard] We can't deactivate any plugin after using WPMU

Hello,

After installing and activating the WPMU plugins and dashboard, none of our plugins could be deactivated.
Every time you tried to do it, the page keeps loading and ended with a timeout.
The only way to solve this is to deactivate all plugins and then activate them again.
However, once the WPMU dashboard is activated again, the issue comes back, even with only WooCommerce and WPMU dashboard.

Any idea what the cause is and how to solve it?
Look forward to hearing from you soon.

Best regards,
Ken