Mina's Sanguine Retreat shows dev-like text when cast into the teleporter for the second time

[Cumatrul]

It says 'ability_vampirebat_batblink_trigger' when cast inside the telepoter for the second time instead of something more player-oriented.

 

[Cumatrul]

The same text is also shown when I try to cast it the second time while on a rope.