Janna's shield not showing

The shield would still give the actaul shield in the hp bar but their is not shield around them. The only visual of the shield was in the hp or the aery. This was in arurf. It also didn't start that way. Look at the janna in the picture.

https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2814717788/47916420?tab=overview