Oscam Vu uno 4k ioctl error

Hi all,
i have a problem in vu uno 4k oscam.
I only can get working 13 channles/recording simultaneous , after the 13 in 14 channel stream/recording i get error in oscam, the other 13 working fine.
(dvbapi) ERROR:ioctl(CA_SET_DESCR): Invalid argument

I try various oscam versions and the same error.
Can anybody helps?

Thank you

mmmm, do you think that it´s limited by the oscam or hardware.
Whats is the config to put in oscam-emu or what version that have that option.
Thank you

ok, thank you for your help.
If i solve the issue i post the fix.