Just had a weird one in TS2010, I got a complicated traffic pattern with 52 instructions then the final destination portal. Set the first AI to wait 10 seconds, copy commands from, append, from schedule library. Worked as advertised, so I hopped on and rode along for about 40 minutes. After he passed trackmark #19 I noticed he was taking the wrong track, so I opened the F6 window to look - next marker was #42? Exited and looked at the schedule library, nope, I didn't leave out 20 instructions, all present & accounted for. Started the session again, hopped on at the start while he was still waiting, the copy icon disappeared and all 52 instructions are in the F6 window, off he went. Currently 10 minutes into the second try, got another 30 minutes to go before I see if he'll do it again. Anyone ever seen this before?