Sounds like beginning of bad story but I think it will sort out, Fluke cameras look at trade secrets on daily basis I guess) Fluke website says it stores images on SD card, no big internal cache is mentioned or needed(like in DJI drones, for example) - so they wont see any secrets if you send it to manufacturer with another SD
Wrote you in pm, see "my messages" page) maybe one day we will compare your TiX to my yet-to-be-bought-and-19mm-adapted Helion Pro)