[1.2.1.4] Twin Fangs will only trigger once on Thermite Mine

If the Twin Fangs devotion skill be set to Thermite Mine, Twin Fangs will only trigger once, usually only the initial hit on an enemy. After triggering once Twin Fangs won’t trigger again for the rest of the duration of Thermite Mine (18 seconds).
The only way to get Twin Fangs to trigger more than once every 18 seconds is to spam resummoning the Thermite Mines on enemies, which based on changes to Wind Devil and Blade Spirit I don’t think you want players doing.

do you have anything else going on? mods etc, you have a specific fight scenario? training dummies?

i just tried and on my version mines trigger twin fangs perfectly fine in regular combat/on enemies even without being ordered/without needing pet command.