Same issue as in 24 - at the start of races in the series area you get a message that the weather is changing and you need to pit from softs to softs…
Based on the driving line it looks like the game thinks that it’s wet. AI then pit.
Given this happened in 24 I hold out little hope that it’ll actually get fixed, but posting for visibility and a small glimmer of hope that it may get fixed.
Happening on PS5 for me.