Fujifilm has released firmware updates for Fujifilm X100V (B&H Photo / Amazon / Adorama) and X-A7 (Amazon/ B&H/ Adorama). The important one is for sure the AUTO POWER OFF TEMP.

This is the overheating problem of the Fujifilm X100V and Fujifilm says “If its temperature rises beyond a certain point, the camera will first display a message and then, if the temperature rise continues, automatically end shooting and power down. Choose the temperature at which the camera turns off automatically.”
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https://www.dailycameranews.com/2020/05/fujifilm-x100v-and-x-a7-firmware-updates-released/