[GAMEPLAY] Tahm Kench Ultimate Bugs on Dominion

During a custom game on the dominion map, I noticed Tahm kench's ultimate was auto-cancelling every time I tried to teleport. The actual activation worked, but when recasting, the animation would cancel and it would go on a brief 10 second cooldown. If an ally jumped into my mouth, it would go on half-cd and would place my W on a short cd, effectively mimicing the effects of the W.

After further experimentation, it seems it varies either on where I cast, or where I want to go when casting my ulti. The bug occurred majorily in the center jungle area of the dominion map.