Brand Ultimate is bugged, not bouncing to valid targets [ GAMEPLAY ]

Clip from YouTube showing Brand using his E on Sona and right after that using his R, aaaand getting 0 bounces even though there was a lot of minions around Sona.

https://youtu.be/ddi4hx2KWhA?t=1601

https://youtu.be/LMb7ud3fm24?t=1014

The YT video shows a Brand using his R on poppy with 2 valid targets in range and getting 0 bounces.

I've had this bug many times occurance seems random to me.

RITO pls fix :*