Btw. which printer do you have? The surface looks a bit unusual (or maybe it is the lighting) - or slicing. Do you use two shells when printing? (slicing setting in Cura).
Suspect it is the dreaded Z axis bearing problem that quite a few of us have hit.
In my case the bearings would periodically lock up, causing the missing layer. I eventually replaced the bearings but I think the underlying cause is lubrication on the Z pillars. Any oil on the pillars makes the balls slide, rather than roll and this causes the lock up.
Some time ago I tested this by oiling the pillars and the fault occurred. When I removed all trace of the oil the fault cleared and hasn't returned ( yet ).
Use kleenex to remove all lubrication from the pillars, move the bed up and down a few times and repeat the wiping.
Does it happen at the same height? If yes, maybe it is something with the filament that's spooled on the roll. A friend of mine had this too and the problem was a filament spool that was stored in a weird way where only one area of the spool was exposed to heat and light. On this area the filament was deformed and it lead to under extrusion in regular intervals...
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