having sodium, journeymap minimap open and the mirror set to 1st or 3rd Person causes solid blocks in the left eye to flicker black.

only happens when joining a server. Singleplayer seems fine

in release this seems to be caused always, as long as the minimap is open.
in dev only when the minimap is open and drawing a bow, or having the physical keyboard open

further observations:

• only happens at rain, also in single player
• if items are in the hotbar, those will flicker black, instead of the terrain

seems fixed with 1.1.2