[gameplay] Health bar disappearance after reconnecting

So I was lagging very badly in the beginning of last game, so I exited the game and reconnect trying to improve the ping. But after I reconnect, my HP bar in my HUD became completely empty, and whenever I take dmg the hp bar becomes flashing red. Really weird and it didn't happen again after I restart my client.

this isnt my first time encountering this issue tho, might be a client issue not sure.