How to watch two biss feeds side by side

Hi, I cannot watch two biss feeds simultaneously using the pip function, only one opens, while the other freezes, as if the emulator could read only one key at a time. Is there a way to solve this? Thanks

oscam emu

same trandsponder and same key for both feeds? That works for me two. I'm talking about watching two feeds that have different keys. I use oscamicam 11731 on a vu+ duo 4kse, pure2 image 7.3, unicable lnb.