setting statusline with function that uses system()

When I do this I often see stray characters displayed in the current buffer.

For example, I can press "j" several times to move down in the current buffer.

It will work a few times and then start displaying "j" characters instead of moving down.

After that point, if I press the esc key I will see "^[" displayed.

The function I use to get my statusline string is called each time the cursor is moved.

The problem goes away if I remove calls to system() in that function.

Is this possibly related to the system() calls taking a while to return?

This is how I configured my statusline:

setlocal statusline=%!MyStatuslineFunction()

--

R. Mark Volkmann

Object Computing, Inc.

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