Neo 2T ant+ FE-C communication protocol and tacx trainer mobile app not working.

With the tacx trainer mobile application I don't detect the Neo2T with the ant+ communication protocol. The home trainer is not detected by both Samsung Galaxy s5e tablet and Samsung S10 smartphone, which both support ant+ communication. But even if I use Garmin's external antstick, Neo2T is not detected. With the desktop application, however, everything is OK and I can also use the trainer in simulation using the ant+ FE-C protocol. Furthermore, when I connect the trainer to Rouvy on both Android mobile devices and Windows PC, the trainer works normally in simulation with the ant+ protocol but the green light on the trainer remains off. Can anyone do some tests to confirm that the tacx app mobile application no longer connects ant+ FE-C with the trainer and that the green light of the trainer stays off when connected to third party applications?

Thanks 

Fabio