Ghosting on Skydemon issue

On November 3rd 2024 I was flying SP-VIP in ADS-B mode set in SafeSky (48E10F taken form Flightradar database, not from the actual airplane papers, SD4 Viper with Dynon HDX) and I suffered ghosting indicated in SkyDemon (scared me a bit as there was a real other airplane on my 6, but fortunately several miles a away). I was not checking the SafeSky interface directly, I just switched the position source in SkyDemon from “GDL90” to the direct GPS of my Android tablet, to stop the false alerts.
Is there anything wrong with the hex code (rented aircraft, so currently I can’t check the papers, but I will be flying it in the future).