I have had the same issue with my Fujifilm xt3 and xt4. Originally i thought it was my sd cards but soon ruled that out. After a month or so of this problem with my xt3 they replaced it with a new xt3.Same issue... They then loned me a demo model xt4 and it still had the issue....Now they gave me a brand new Graphite silver xt4 straight out of the box and after 2 weddings it started freezing again....It only happens when i use my godox x2t f trigger.....im really starting to get annoyed....Has anybody found a solution yet?
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