I tried to see if I can cause the same problem again and considering that there have been some glitchy moments with the slopes or between the solid blocks and slope in PB I tried to push the player inside the wall which was quite an easy to do.

It is a PB glitch because if you watch the shape then tiles have been set properly but I think I can fix the glitch by using invisible CMD blocks to move the player back left when being close to that side...

However, to be sure you met the same problem as I did and that there are no more known problems then please answer!

Did the glitch happen between 2 tiles shown with an orange line and in about a spot shown with a red circle?