Error 0x802A0104

Value: -2144730876 | 0x802A0104 | 2150236420

What does it mean ?

UI_E_END_KEYFRAME_NOT_DETERMINED  
It might not be possible to determine the end keyframe time when the start keyframe is reached.
Value: 260 | 0x0104 | 0b0000000100000100

Where does it come from ?

FACILITY_UI  
User Interface
Value: 42 | 0x02A | 0b00101010

StackOverflow

Other Errors for FACILITY_UI