Etransfer to WS delays

Many years ago I've used Koho and still have some direct deposits going there, never bothered to change it, so I usually etransfer funds out.

I just added my WS email there but for some reason while all other etransfers (auto deposit) are almost instant, the ones from Koho to WS takes 30min or so, even though it's auto deposit.

What I'm curious about is the fact that Koho support told me it's on the WS end, even though those etransfer show as pending in Koho..so it has to be Koho issue? Their customer support isn't the best so I always take anything they say with a grain of salt