kez can't click his spells on targets

[zell0323]

Ability name

talon toss

Description

After switching to sai stance and immediately using talon toss, i can't click on targets.
It happens occasionally so i don't know the trigger yet.
It's hard to tell from replays but maybe it can be a hint to reproduce.

Example Match ID (and possibly Timestamp)

8122029228 - 42:07