The login buttons and search box have disappeared from my header. I'm looking for a nudge of what settings and/or code I can examine to debug this issue.
I've already double checked my search_header.php sidebox settings in Admin > Tools > Layout Box Controller and the settings look good:
Box Name: search_header.php
Left/Right Column Status: OFF
Location: (Single Column ignores this setting) LEFT
Left/Right Column Sort Order: 0
Single Column Sort Order: 10
Single Column Status: ON
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