Wont stop turning

Okay so I just recently got a vex iq set for learning, and we have been using the set for two days now the first day of coding went perfectly but today when we were coding for it to turn 90 degrees to the left it just would not stop turning , so I put the motors separate instead of driving base and they would turn 90 degrees then stop so I don’t understand why when they are together in driving base it doesn’t stop, if anyone knows how to fix it it will be lost of help, thank you and have a nice day

Could you screenshot the code and the drivetrain setup page?

Diagnosing this is very difficult without seeing the code. I would be happy to help if I could see the code for the turn.

If you are using PID, try calibrating the IMU, if you are just using normal vexcode, make sure you have it say “Turn Right For 90 degrees” Instead of “Turn Right” If you coded it correctly, make sure you have “No gyro” selected in drivetrain config.

It’s hard to say, but This post might help. In it there is a link to an even earlier post on a similar issue.