Thanks for your answer Michael.
Important is that this issue happens in 2023/24 (!) and the next seasons. The first season in 2022/23 it doesn't happen because the real schedule from the real Bundesliga season is used. In germany's Bundesliga are these two things different to what in FM is:
- When you play in matchday 1 against Team A you will play in matchday 18 against this opponent again, Team B from matchday 2 you will play at matchday 19 again and so on. -> you can see at the screenshot that this is wrong in FM. In second half of the season the matches after Hertha BSC must be Werder Bremen and then Wolfsburg instead of Köln and Schalke.
- in the Bundesliga you play a maximum of one game in a row away or at home in the first and second half of the season. If a team plays twice in a row away from home in the first half of the season, they play twice in a row at home in the second half of the season. If no misplaced game is replayed or the like, this will not happen in any other case.
I also deleted the game, deleted the cache in FM23 folder and reproduced this always when I started a new game and was simulating. Please give me a shout if you need further informations or another savegame. I really hope and wish this can be fixed. I love the FM not only because of its realism. This issue is really sad because it is actually nearly each FM since a few years that in germany such kind of issues happen.
P.S.: Happy new year and stay all healthy.