Problem with Opentx on 9X

[tons28]

Hello,
I have installed opentx on my 9X. It's working like a charm, but i have problem with the THR and ail switchs. they don't work. I'm on opentx 2.1.9 cause it seems to be the last available version on this remote.
I had the ER9X installed on the remote, and these switch was working. So why on opentx, it doesn't work anymore ?
I have made a test, i have installed again the ER9X and the switchs are working. I install opentx, THR and ail don't work anymore.
Any ideas ?
Thank you.

[Kilrah]

You selected the frsky option without having done the telemetry mod or vice versa.

[tons28]

You re right, i just upload a version without frsky and it works.
Thanks a lot