## Grading formulas broken: variables not working

Since the introduction of sub-assignment ids (i.e.

`$13202`

), the usual variables such as`$computed`

and`$checklist`

throw an error when validating the formula. Reported by Ivo on Mattermost:Submitted by Max on 31 July 2023 at 13:58It seems like something with variables is broken in the custom grading formula feature. A formula I used before now doesn’t work if I just click “save” again. Some formulas do seem to work, but as soon as I add any variable, it gives me "Grading formula refers to assignment keys that cannot be resolved: ". Or am I missing something?

screenshot with the error`Grading formula refers to assignment keys that cannot be resolved`

on the formula`if max($computed, $checklist) == 10 then 10 else 0`