Built a HUD Widget... Now project crashes

Basically, I built a player HUD to see stamina when playing the game. Super simple. Works perfectly. But after saving and exiting, when I relaunch the project it crashes. I can provide crash logs upon request. As a check, I simply recreated my HUD and widget from scratch, compiled and played it in the game just fine and same results when I went to reopen the project.

Log lines to note---- -------
2021.01.25-07.55.03:368] 0]LogWindows: Error: === Critical error: ===
[2021.01.25-07.55.03:368] 0]LogWindows: Error:
[2021.01.25-07.55.03:368] 0]LogWindows: Error: Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/Templates/Casts.cpp] [Line: 10]
[2021.01.25-07.55.03:368] 0]LogWindows: Error: Cast of LinkerPlaceholderExportObject /Game/HUD/PlayerDeckWidgetHud.PLACEHOLDER-INST_of_PLACEHOLDER-CLASS__WidgetBlueprint_1 to Blueprint failed


Crash log lines to note------

failed to load ‘/Script/UMGEditor’: Can’t find file.
Unable to load PlayerDeckWidgetHud with outer Package /Game/HUD/PlayerDeckWidgetHud because its class does not exist