Weird karaoke-sunflower's mouth

Product: Plants vs. Zombies™ 3
Platform:Android
What's your device's make and model? AGS2-L09
What version of the operating system are you using? Android 8
What is your Player ID? p-d73fd913-683f-450a-9b07-17ac35ac8375
When did this happen? (dd.mm.yy hh:mm) Don't remember
How often does the bug occur? Every time (100%)
Connection Type Wifi
In which country are you located? UK
Where did this issue occur? Please include menu name or in game location. Game map
What kind of issue do you have? Visual
What happens when the bug occurs? The karaoke-sunflower's mouth becomes weird (see screenshot).
What do you expect to see? Normal karaoke-sunflower's mouth.
Steps: How can we find the bug ourselves? Build karaoke stage

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I built the karaoke stage and saw weird sunflower's mouth.