No space between barline and note if invisible key signature present
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 126.96.36.1999510097, revision: 28aa7ba
The attached score looked OK in version 3.5.2. However, in 3.6.0, the note left margin in measure 2 is virtually non-existent. Resetting makes no difference.