TV is only out putting 1080 even though ps5 is on 4k

I have a a 4k mark2 elagto hooked up to my ps5 and switch with I switch between with an 4k60hz hdmi switch from iDsonix 3n1 but for sone reason even though the ps5 says it can switch to 4k output my yv when I press info button still says 1080p
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