In my case, it happens with a 15-45 zoom and another lens. I don't think it is a lens problem. In my opinion, it is a design defect or a software bug. My daughter's T4 was brand new, never used.
Same issue with my daughter's brand new XT4 and with my XT30.
Fujifilm engineers should solve this issue and give a definitive official answer to the many affected customers.
This “turn off camera, turn on again!!!” is clearly a bug or a design defect of Fujifilm cameras.
Same problem for me with Fujifilm X-T30.
whenever I turn on the camera I can hear a shutter sound and the following message “turn off the camera and turn on again”.
The camera becomes useless.
Thank you for any help.
Regards,