Pro 12v2 Portals and Tab Controls
Operating system version
Windows 7 / Mac OSX
Description of the issue
If a tab control is added as the front most object on the layout and placed over a portal with at least 1 invisible tab (no background / borders) scrolling the portal with the mouse scroll wheel no longer works.
You can still scroll using the scroll bars (as expected) and hover states of rows in a portal work too, in fact I think its only the mouse wheel scrolling which fails.
Another issue is if this layout is opened in FileMaker Go, the portal will display in front of the tab panel.
The new tab panel behaviour teases you with possibilities, such as overlays / info windows, but with these two issues it becomes impractical to use it other than the FM11 way. :(
*Edit: tested on Mac OSX 10.8 and the same issue is present.
Steps to reproduce the problem
Create a simple layout with a portal.
Add a tab control so it completely covers the portal
Set at least one tab to be invisible (no borders / background)
The portal to scroll with the mouse wheel, since mouse detection is working based on hover states still working.
The portal can only be scrolled by manually clicking the scroll bars.
Exact text of any error message(s) that appear