i use ue4 4.25.3 i have this warnings anyone no how to fix. i tested with a clean project 
LogClass: Warning: FDonPaintStroke::WorldLocation is not initialized properly
LogClass: Warning: FDonPaintStroke::BrushSizeWS is not initialized properly
LogClass: Warning: FDonPaintStroke::BrushDecalRotation is not initialized properly
LogClass: Warning: FDonPaintStroke::BrushColor is not initialized properly
LogClass: Warning: FDonPaintStroke::FaceIndex is not initialized properly
LogClass: Warning: BoolProperty FDonPaintStroke::bEraseMode is not initialized properly
LogClass: Warning: ObjectProperty FDonPaintStrokeParameters::BrushDecalTexture is not initialized properly
LogClass: Warning: ObjectProperty FDonPaintStrokeParameters::BrushRenderMaterial is not initialized properly
LogClass: Display: 8 Uninitialized script stuct members found
LogAutomationTest: Warning: FDonPaintStroke::WorldLocation is not initialized properly
LogAutomationTest: Warning: FDonPaintStroke::BrushSizeWS is not initialized properly
LogAutomationTest: Warning: FDonPaintStroke::BrushDecalRotation is not initialized properly
LogAutomationTest: Warning: FDonPaintStroke::BrushColor is not initialized properly
LogAutomationTest: Warning: FDonPaintStroke::FaceIndex is not initialized properly
LogAutomationTest: Warning: BoolProperty FDonPaintStroke::bEraseMode is not initialized properly
LogAutomationTest: Warning: ObjectProperty FDonPaintStrokeParameters::BrushDecalTexture is not initialized properly
LogAutomationTest: Warning: ObjectProperty FDonPaintStrokeParameters::BrushRenderMaterial is not initialized properly