Open a migrated blueprint crashes the editor everytime

General Feedback & Requests
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Try fixing redirectors in 4.xx project. Those may be leftovers from some corrupted version of blueprint.

If this does not help, create empty blueprint of same class, in 4.xx and copy paste all stuff. Then you will get ghostly nodes for get and set variables, just go over blueprint click on them and recreate variables.

You can also try this (on copy of that blueprint in 4.xx):

  • create same class of blueprint. Name it foe eg: BP_ParentClass
  • reparent your crashing blueprint (copy of it!) to be child of that BP_ParentClass, this either will crash or hopefully unlock/remove corrupted components.
  • change your reparented blueprint into base class back.

EDIT:

try this option (add to shortcut that starts editor):

-NoLoadStartupPackages

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