The fuse voltage readings are not unusual, despite what Markus said.
Every meter varies slightly and voltage will change under load, so unless you disconnect everything else in the circuit, you may see slight variations.
This is almost certainly a cluster issue. If it were me, my next step would be to pull the cluster and power it up on the bench to rule the car out. Next, disassemble cluster and check continuity on the pins (looking for a broken solder joint). If all was good there, I'd move on to the onboard power supply.
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