Keep track of the number of unsupported steps

(cherry picked from commit 45ffe578b695f9de101b30d44d46f12aa0654f10)

Created by  Eelco Dolstra  on March 26, 2020
XCXMK24UK6CIYCJITRERAX3IBAH5EW22SLWD2JPHVWBOSFVTGOQQC
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