ISO Stuck on 800

[Lizaan]

I have a Fuji XT3 and haven't used it for approximately 2 months,  I switched it on and noticed that some of the settings I've changed defaulted back to factory settings, saying this, when I changed the settings to what I had it on, I realised the ISO is stuck on 800, if I dial down it goes to 51200, if I dial up it goes to 1600,  3200 etc. Its almost as if it makes a full 360 dial. 

 

So,  I have no idea why my ISO is stuck on 800.  

 

Please can someone help me? 

Edited May 4, 2023 by Lizaan
Incorrect information

[Weirdo]

Open your Q menu and look for a square labeled DR. That is your dynamic range and it is probably set to 800. lower it to 100 or set to auto.