• Addon version: 10.0.14
• Server patch: 10.0.2.47213

During RDFs Bagnon creates error when I want to cast spell from spellbar, only option to cast the spell during fight is to disable bagnon. Creates a horrible hole during fight, during which I cannot heal.

Steps to reproduce the behaviour:

1. Go to RDF
2. During fight try to cast spell from spellbar (Classic from Blizz)
3. You'll see error and you didn't cast the spell
4. Occurs after few minutes after reload, from the moment, all spells are uncastable
5. If cannot reproduce, try few more dungeons, if too, playing tauren resto druid with healbot turned on