WPMUDEV Dashboard Disappearing

Plugin keeps disappearing from menu.

Go to Plugins and it's listed as active.

Sometimes when we click deactivate - it automatically takes you to the WPMUDEV Dashboard page which is bizarre. Other times it will deactivate the plugin and reactivating it brings it back.

Only to be randomly disabled again at another time.

We have seen this on a number of sites but for the purpose of this ticket please use our development base application as selected when creating this question.

have seen other questions similar to this but they are old and reference older versions of WP and there have obviously been a-lot of updates to WPMUDEV Dashboard recently (you guys are doing some amazing stuff!) ;-P