IFR training - RNAV basics imposible to pass

Do you have the same issue if you follow the OP’s steps to reproduce it?
• yes

Provide extra information to complete the original description of the issue:
• I started a company on career mode for cargo company. I bought 3 cessna 172 and accumulated about $5mil. Id like to purchase the cessna 208b but for the life of me it wont let me. I passed that tornado mission and the sim crashes. When i turn the sim back on it says i passed that mission. Also i tried doing that instrument rating and passed all with A’s except the RNAV training bc apparently its impossible to get over a C even using autopilot. I was able to get a B on the RNAV when i used the green arrow centered to the left the entire time it marked centered green. Yet i still cant pass the instrument rating to buy the 208b
Im at a loss here, anyone have any ideas on how i can buy the 208b.

If relevant, provide additional screenshots/video:
• cant since im a new user.