Blinking Cursor Issue

I have recently bought my dream mouse Razer Orochi V2 however I am confronting with an issue. As we know COVID has badly affected our lives, so I use to study online University portals. I bought a subscription to an Indian website called Unacademy, which cause the issue of blinking cursor on the browser page. Just like the Word Document cursor, my mouse cursor is blinking. Now I am confused about whether the issue is due to the new mouse or due to a website bug that caused the issue.