Aircraft performance error after transfer flight plan

#1

two types airplanes.
1 - MD81
2 - 737-400
quimby server.

  1. Tranfer flight plan from 1 to 2
  2. Wait 2 dayes. plane 2 has not yet started flying.
  3. Transfer flight plan from 2 to 1.plane 1 has not yet finished flying before the first transfer.
  4. Now I have performance error for some of flights.

Moderator edit: Moved the thread to Community Support. //Banff.

#2

Slots not available. The planes are flying with different speeds.