Thanks John, I simply changed the livery but was enough to create issues.
Here, FSUIPC7 list Hvars from C:\FS2020\Community\fsuipc-lvar-module\modules\A320.hvar
8266 SimObjects\Airplanes\FlyByWire_A320_NEO\aircraft.CFG
8281 User Aircraft ID 1 supplied, now being used
8344 Aircraft loaded: running normally now ...
8953 System time = 02/10/2021 17:49:44, Simulator time = 12:49:44 (15:49Z)
8953 Aircraft="Airbus A320neo Easyjet NEO c/s"
9531 Lvars/Hvars received - checking aircraft autos....
With same aircraft but other livery, Hvars from C:\FS2020\Community\fsuipc-lvar-module\modules\A320.hvar are not listed
8281 SimObjects\Airplanes\FlyByWire_A320_NEO\aircraft.CFG
8313 User Aircraft ID 1 supplied, now being used
8375 Aircraft loaded: running normally now ...
9031 System time = 02/10/2021 17:42:44, Simulator time = 12:42:43 (15:42Z)
9047 Aircraft="FWB TAM"
9594 Lvars/Hvars received - checking aircraft autos....
I solved updating Aircraft.cfg of the livery from: Aircraft="FWB TAM" to Aircraft="A320 NEO FWB TAM" and now FSUIPC7 list Hvars again.
Thank you so much, a very important thing to know.
In case I need to create two files:
A320.hvar
A320FWB.hvar
How should I go about getting FSUIPC7 to distinguish them?
Thanks