nonresponsive X button in CC:Rivals (android)

[xconan9]

In the alpha android vs of CC:Rivals, when closing a window by pressing on the X icon, there is a lack of response ti close the window. It takes multiple presses like mashing the X button icon to force close the window.

[xconan9]

Running Oxyen OS (oreo 8.1) on Oneplus 6.