Game play issue. Reksai tunnel

Reksai E while burrowed is supposed to show how many tunnels she has in reserve and a timer on how long till she gets the next one if she has none left. The bug is in game while burrowed the icon for the ability always shows 0. When hovered over in the tool tip it will show the correct amount and the ability can still be used. But when looking at first glance it will not show how many you have. Happened in a custom i made after noticing it in a ranked match i played.