Search the Log for Error and Warning
It says that multiple Blueprints fail to compile.
Check if any of those BPs compile in the editor.
For example:
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin Target no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker2.BP_MedicalLocker2
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin New Visibility no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker2.BP_MedicalLocker2
LogInit: Display: LogBlueprint: Error: [Compiler] Macro node Macro instance is pointing at an invalid macro graph. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker2.BP_MedicalLocker2
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin Target no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker1.BP_MedicalLocker1
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin New Visibility no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker1.BP_MedicalLocker1
LogInit: Display: LogBlueprint: Error: [Compiler] Macro node Macro instance is pointing at an invalid macro graph. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_MedicalLocker1.BP_MedicalLocker1
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin Target no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_FirstAidKit3_03.BP_FirstAidKit3_03
LogInit: Display: LogBlueprint: Error: [Compiler] In use pin New Visibility no longer exists on node Macro instance . Please refresh node or break links to remove pin. from Source: /Game/First_Aid_Health_Kit/Blueprints/BP_FirstAidKit3_03.BP_FirstAidKit3_03