I am logged into the Super Admin account.
For some channels the bug is happening when I view the Site Admin layout preview, but on further investigation it is also happening for my Super Admin account layout preview on only one of my channels.
The Site Admin member group was created off of the Super Admin member group.
Site Admin has full CP access privileges except the following items are set to NO:
Can access the DESIGN section
Can access ADD ONS: Extensions
Can access ADD ONS: Plugins
Can access ADD ONS: Fieldtypes
Can access ADMIN section
Can access ADMIN: System Prefs
Can access ADMIN: Content Settings
So I think it may have something to do with my Third Party Pixel & Tonic field types, but I can’t disable those field types to test it.
Here is a list of my Channels with their installed field types:
Channel 1 (Bug Does NOT Occur):
Pixel & Tonic Wygwam
Text Input
Channel 2 (Bug DOES Occur):
File
Text Input
Text Area
Select Dropdown
Text Input
Pixel & Tonic Switch
Channel 3 (Bug DOES Occur for BOTH Site Admin & Super Admin):
Pixel & Tonic Matrix
- File
- Text
Channel 4 (Bug DOES Occur):
Relationship
Pixel & Tonic Dropdown
Pixel & Tonic Matrix
- File
- Text
Channel 5 (Bug DOES Occur):
Input Text
Pixel & Tonic Matrix
- File
- Text
- Pixel & Tonic Dropdown
- Pixel & Tonic Wygwam
Pixel & Tonic Wygwam
Pixel & Tonic Switch