Tag Order Is Not Showing On The Front End
Confirm the theme renders tags through a path the plugin controls. A theme that outputs tags with its own custom query, bypassing the plugin, will show WordPress's default order.
If you are using the core post-terms block, order is applied before the block renders as of 1.2.0.
Order Did Not Load In The Classic Editor
Before 1.2.0, tag order synchronisation on load required a nonce WordPress does not issue, so it never ran. Update to 1.2.0 or newer.
Separator Appears Inside A Tag Name Or URL
Fixed in 1.2.0. The separator is now replaced only between tags. Update, then reload the post.
Separator Styling Missing On A Non-Block Theme
The separator stylesheet loads from a plugin-owned handle as of 1.2.0, so it applies even on themes that do not load core block styles.
A Filter Callback Runs Twice, Or Never Runs
settagord_ordered_tags previously ran twice on posts with a saved order and never on posts without one. As of 1.2.1 it runs exactly once per render, including on unordered posts. If your callback appends or counts, review it against the corrected behaviour.
Custom Classes Stripped Other Attributes
Fixed in 1.2.0. Classes are applied without rebuilding the link, preserving rel="tag" and attributes from other plugins.
Order Metadata From An Older Version
Order metadata saved by older versions is preserved on upgrade. If an older post has no order, set it once and save.
Debug Mode
Enable debug mode under Settings → Set Tag Order to log diagnostic information, then turn it back off. When debug mode is off the plugin no longer formats log messages at all, so leaving it disabled costs nothing on the front end.