Serious Metroid: Other M Bug Requires Total Restart
Posted by James Newton
Nintendo aware of issue
A rather serious bug in Metroid: Other M has come to light that requires players who encounter it to load a previous save file or, in dreaded circumstances, start their save file over again.
The issue is a single door on the far side of a lava pit in Sector 3, right after moving on from the desert refinery. If that door is red, you're not getting any further, so reloading an earlier save file is likely your only hope.
A Nintendo customer support representative has stated the company is aware of the issue but could not confirm an update or solution was in the works.