REGRESSION Copy and pasting Event bindings in UMG causes cook failures and UEFN crashes when trying to reopen offending Widget

Summary

Copy and pasting Event bindings in UMG causes cook failures and UEFN crashes when trying to reopen offending Widget.
LogValkyrieActivityTracker: Warning: Session → Fail Activity: LoadingNewContent - Error updating content
LogValkyrieSummary: Failed to update content due to error.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.
PlatformCook: Error: LogBlueprint: Error: [AssetLog] ....\Plugins\GameFeatures\bbd16595-4d68-8763-5f57-42b2d98b4215\Content\custom_widget\WB_UI_Custom_PinPad.uasset: [Compiler] Internal error: An event is invalid.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

UI/Tools

Steps to Reproduce

CREATE NEW UI ., ADD SEVERAL BUTTON … CREATE EVENT (oN CLICK, ON OVER ON UNOVER) .. BINDING FIRST BUTTON TO EVENT . .THEN GO ON WITH CUT AND PAST … VALIDATION WILL BE OK .. RUN THE PROJECT … COOK FALLED !!

Expected Result

WORK PROPER

Observed Result

PROJECT COOK ERROR, SESSION DID NOT START .. IF YOU CLOSED THE PROJECT .. DID NOT OPEN ANY MORE .. uefn WILL CRASH

Platform(s)

wIDOWS pC

Island Code

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