ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor.
Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917)
Unable to include Crash Report... Crash Reporter keeps crashing in Main for me. Crash log attached.
1. Create a new blank project
2. Save the map as NewMap
3. Create a new GameMode BP
4. In the BP defaults, enable Use Seamless Travel
5. In World Settings, set the GameMode to the new GameMode BP
6. Create a new level
7. Save the level as NewMap2
8. Open NewMap
10. Enter console command, "ServerTravel newmap2"
11. After NewMap2 is loaded, enter console command, "ServerTravel newmap"
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