I bought this aircraft for x plane 11 about a month or so ago now, and I'm having difficulty inputting flight legs after a certain point. On an example flight, I was trying to go from Ramstein AB (ETAR) to Pittsburgh INTL (KPIT). going from Ramstein I was able to put in about half of the legs necessary and then it just started saying "Not Found" on whatever legs I would input after that into the FMC. I tried adding more later in the flight to see if that might've been the issue, but to no avail. Has anyone encountered this before?