Casting Frostblink socketed in Infernal Blade causes desync

Infernal Blade:
Trigger Level 30 Flame Dash when you use a Socketed Skill

Bug occurs when socketing Frostblink into the item and using it.
Both movement skills are used.
On-screen character position result doesn't seem to follow any clear rule other then mostly keeping the general direction of cast Frostblink.
Actual server-side character position always follows triggered Flame Dash's destination.
Moving after blinking immediately causes "snapback" resync to the actual character position.

Short video demonstating the bug:
https://i.imgur.com/1uMP4WC.mp4