Unreal Engine Issues

UE-39637

AreaFlags Empty During First PIE Session After Hot Reloading

AreaFlags Empty During First PIE Session After Hot Reloading

UDN
Description

AreaID always seems to be empty during the first PIE session after hot-reloading.

Only able to test in Dev-Framework CL# 3221683 due to the licensee's project being created in 4.15 and not being backwards compatible.

Steps to Reproduce
  1. Open the attached project
  2. Open the .sln in Visual Studio
  3. Make a code change, such as adding a test variable
  4. Compile and ensure the editor hot reloads
  5. PIE
  6. Click the blue zone to move

Result: Notice that Area-Flags is empty in the log

LogTemp:Warning: SUCCESS ! PATH
LogTemp:Warning: [0] : flags 81665 : area-flags 1 : customlinkid 0
LogTemp:Warning: [1] : flags 768 : area-flags 0 : customlinkid 0
LogTemp:Warning: [2] : flags 81666 : area-flags 1 : customlinkid 0

Expected: I'd expect to see the same results as the second PIE:

LogTemp:Warning: SUCCESS ! PATH
LogTemp:Warning: [0] : flags 81665 : area-flags 1 : customlinkid 0
LogTemp:Warning: [1] : flags 328448 : area-flags 5 : customlinkid 0
LogTemp:Warning: [2] : flags 81666 : area-flags 1 : customlinkid 0

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Cannot Reproduce
ComponentUE - AI
Affects Versions4.15
Target Fix4.20
CreatedDec 12, 2016
ResolvedFeb 20, 2018
UpdatedFeb 20, 2018