Repo: Piwigo/piwigo-smartpocket (separate from Piwigo/Piwigo)
Issue: #16 – Piwigo 16 missing new template selected_tags.inc.tpl
Commit: b307be0 by plegall (27 Dec 2025)

What changed
The file template/include/selected_tags.inc.tpl was added to the smartPocket theme. Piwigo 16 core expects this template, but smartPocket didn’t include it, which caused the Smarty error. The fix was to add that file to the theme.
Released in smartPocket 16.1.0.1. My setup has 16.2.0, so I already have this fix. The remaining problem is in core: include/selected_tags.inc.php uses a relative path with no fallback, so themes that don’t provide the file (e.g. modus, bootstrap_darkroom) still fail.