My designers notified me that the button for Woocommerce “Add Membership Plan” went missing. They could not then perform their work.
I personally deactivated “all” plugins” except for Woocommerce and “presto!” The Woocommerce “Add Membership Plan” button appeared.
I then started turning on all the plugins “including” the User Role Editor (non-pro version) and the “Add Membership Plan” button was still present.
It was when I then activate the User Role Editor Pro version that the button went missing.
I hope you can fix this bug.