From: Genoa, Republic of Genoa (occupied by Italy)
Some good news: the failure to penetrate string works fine (see #6 below). Unfortunately, it is the only one.
Cases #1 to #4 show the strange strings appearing when an AFV is destroyed. #3 and #4 show the same string, so I presume they refer to the same hit type (e.g. Turret Side), but I have not noticed this when I took the screenshots.
Case #5 does not show any string (just like a miss), but the AFV was killed anyway, so I suppose it has been hit and penetrated.
On a side note, when OBA hits a tank, the hit location is shown as intended.
Chasing Germans in the moonlight is no mean sport
Long Range Fire (A7.22)........1/2 FP