After AndroidStudio selects the code, the cursor automatically becomes thicker and automatically becomes ins mode.

I encountered it yesterday. After the code was selected, the cursor automatically became thicker and automatically changed to ins mode because of the update of as. It was useless to check a lot of information.
1. Problem description:
as When the code is selected with the mouse, the cursor will automatically form a very thick black block behind the code, which cannot be cancelled by pressing the ins key, but as long as the code is not selected, pressing the ins key can restore it. The effect is shown in the figure:

2. Solution
Tools -> Cancel Vim Emulator

If it hasn’t been solved yet, then you have to come on. This is how I solved it.