Stereo Send to Stereo Loop?

I have connected my H9 max to Kemper's loop following way:
TS cable from Direct Output/Send -> H9 Left input
H9 Left Out -> Kemper's Return input
H9 Right Out -> Kemper's Alternative input

Someone said here in the forum that you can use Y-cable (1/4" TRS cable to two 1/4" mono jacks), but if I do that I get signal only to left side. That is because the Kemper's Send output is only mono for some reason.

So the question is: Is there a workaround? There's Monitor Output still available for example... I would love to use new 5.0 delay algorithms and use H9 reverbs. But new delays have beautiful stereo tricks and I hate to lose them... a workaround could save me some money, otherwise I think I must buy H9 core

That is unfortunate... Hmm hard to believe that there's hardware limitation why kemper couldn't send from both Direct Output and Monitor Out information to the loop... Maybe i could post a feature request.