Vim mode’s Y + p or P commands do not work properly.

First, Y only captures from the cursor to the end of the line, whereas in vim it captures the entire line. yy seems to work fine.

Given the following text:

1
2
3
4

Move the cursor to line 2 and press Y.
Then press kP
The text will then read

1
22
3
4

However, in vim it will correctly be

1
2
2
3
4