When Blueprint Compilation Manager is enabled, behavior tree node can get corrupted as REINST. 

Steps to Reproduce
  1. Open the attached project
  2. Check BT_BattleDefaultDirection - the node is displayed correctly
  3. Reopen the attached project
  4. Start then stop PIE
  5. Check BT_BattleDefaultDirection - the node becomes REINST one

note: it seems if you open the behavior tree before starting PIE, the node does not turn into REINST. Also turning off Blueprint Compilation Manager stops this issue from happening.

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ComponentUE - Gameplay - Blueprint Compiler
Affects Versions4.19
Target Fix4.20
Fix Commit4078822
Main Commit4289353
Release Commit4100540
CreatedApr 24, 2018
ResolvedMay 17, 2018
UpdatedAug 21, 2018
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