'Undo' not working correctly

[Bimbimasli13]

I have to press the ‘undo’ button several times to successfully do the ‘undo’

https://www.dropbox.com/s/yaz8uny4mmgi6aa/Screen%20Recording%202018-12-20%20at%2011.39.14.mov?dl=0

it's solved when i disable magic mirror plugin