Rating change results in "Error"

[Don Desfosse]

Tried to "un-resolve" #75, but can't figure out how.

1090995 I1 --> I3 on 09/28/2016 Did not process

When I try to process it again, all I get is a tiny "Error" notation next to the "Save" button.

[Daniel Hawton]

Commit cff34c2