I recently encountered an issue on an SMF 2.0.14 forum in which, when trying to view the details of a package installation error/manual edits required, the 'Operations' window was missing the 'codeheader' blocks (eg, Code: (Find) [Select], Code: (Replace) [Select]) - see attached.
I discovered the issue occurred because I had disabled the 'code' tag for posts and topics in Bulletin Board Code settings and I believe this is a bug because I don't think disabled BB codes should apply to Admins.
The fix I've implemented (which prevents disabled BB codes applying to Admins) is as follows:
In ./Sources/Subs.php
Find:
if (!empty($modSettings['disabledBBC']))
Replace with:
if (!empty($modSettings['disabledBBC']) && !allowedTo('admin_forum'))
Tracked (internal issue #143)