Diana shield bubbles remain visible when walking into fog of war

I ran into this issue on Ascension with a Lunar Goddess Diana skin on the opposing team. Don't know if this occurs with other skins or maps.

Whenever Diana walked into the fog of war with her shield active the bubbles would remain of the edge of the fog rotating even though she wasn't there. It seemed like it continued to move in towards either her current location or the path she took if you moved into and expanded the vision but the spell lasts a fairly short time so I couldn't be sure.