Samething happened to me…
“Replace with”
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Replaced root widget of “Canvalpanel widget” which is named as “Overlay” with “Overlay widget”
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this widget binded as “Canvalpanel” in CPP, so engine renamed “Overlay” as “Overlay_1”
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here i don’t know wheather i saved widget blueprint or not
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Editor crashed because of completly other reason, not related to widget class.
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Reopened project, LOST., all child widgets deleted
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first error is: “A required widget binding “Overlay” of type Canvas Panel was not found.” After that, Removed unused widgets etc…
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Stiil that widget blueprint is 286kb in file, but don’t know how to bring that back, tried changing widget binding in cpp, but that doesn’t worked.
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Backup saves the life…!