Siming Loses International Selection

Hi team

I was wondering if this is a known bug or intended,

When I am playing career, I am simming most games that i dont want to play, for example if we are ahead on ladder I wont play shield games or local club games, but for example I got selected to play test matches at a international level many times and when i get to the international level game I will bat and lets say I either get out for a good score like 100+ OR I get to 100 and sim the rest of the game out,

When I do that I never get selected again to play at a international level, this does not happen when playing t20 tournaments and so on,

Is this a bug or can you not Sim at international games or tournaments?