Read it, missed it the first time. Last sentence, ALL VERSIONS... the "A" variant too

“During shore-based testing in overcast starlight conditions, [helmet-mounted display] symbology brightness and video contrast at the max settings and while adjusting video brightness, the pilots were unable to generate a reliable image of the horizon at any time, or to display a scene with texturing critical for peripheral motion cues,” the government document reads.

Fixing the glitch, which was first reported in November 2017, is a top priority for the U.S. Marine Corps, according to the documents. The issue is listed as a category 1 deficiency in the documents and is defined as something that “critically restricts the combat readiness capabilities of the using organization.” In this scale, category 1 represents the most serious type of deficiency.

The issue affects all versions of the F-35, the documents point out.