idea cursor becomes thicker and cannot be toggled with insert

Press the Insert keyboard, you will be writing a very thick cursor, and the input will replace the following character, which we are familiar with, and then press Inser keyboard can switch back.

But in idea there is a situation, that is, after switching back, the cursor is still showing very thick, so that looks very uncomfortable, and then press the Insert keyboard, thought the switch back, but in the input content will still replace the following characters. And in the carriage return, will not change lines, but into the direction of the downward key.

The solution is as follows: File→settings→editor→appearance inside will be used block caret front of the hook to remove it.