I have an MSM setup that has three sites with the same channels and custom fields. In my original site, I have a custom publish layout that strips all tabs off except for Date and Options.
I’m doing the same thing on the derivative site’s channels, and it appears to be working, but it’s naming the Date and Options tabs Pages and Categories respectively. They have the same, correct fields in each tab, and trying to add a new tab called ‘Date’ alerts me that a tab with that name already exists. This is occurring on all of my MSM sites except for the original.