Found the bug:
https://github.com/coderbyheart/adventofcode/blob/5118b2526d2da9da490b665072afbe0aa400bb97/day7/calculateThrusterWithFeedbackLoop.ts#L13

Part 2 is now also complete:
https://github.com/coderbyheart/adventofcode/tree/ed99c5a8bb23756725286cfcabbfc202246172ea/day7