Automatic playing missing first iteration and jumps to the second first

Here after measure 46 playing-corsur jumps over and plays only the 2nd iteration: https://musescore.com/user/32382814/scores/5860092

I created it with Musescore 2.3.2 and every time while editing I tried to insert an iteration with "number 1" and the automatic playing jumps over it. I also tried the actual non-beta Musescore 3 but automated playing-mode did the same as well as in my upload, see ahead. Strange, didn't have this before since years of using Musescore 2.3.2.