Video example: https://youtu.be/vd33DnXCPRs
Logs when this was happening:
RPT 1 (Mods on, "Bad conversion: scalar" spam): https://drive.google.com/file/d/0BzhAlCholccbbXcwanBzNWdDQTQ/view?usp=sharing
RPT 2 (Mods off, no spam, exact situation as video): https://drive.google.com/file/d/0BzhAlCholccbR1VpZzdQVXl2eW8/view?usp=sharing