iPhone bug - Queen disappears after promotion

Hello, 

I was playing a bullet match, and promoted my queen with ample time left on the clock to checkmate. 

As I promoted my queen (playing on the iPhone app) it did not appear. See the photos below.

This photo is during the match as I was playing, I promoted my queen on f1. Interestingly in the moves list it has 37. f1 =  ÿ. Clearly the queen is not visible:

This is after I lost on time :

This is after the match, going back through the game, just to show the moment before I promote: 

when reviewing the game, the queen appears as it should and noteable f1=q not f1 = ÿ. 

(as I promote) 

Anyways, I hope this might help fix the bug. 

I tried to post this in the help / support section of the site, but in creating the post on mobile it didn’t seem to work properly 😔