There was in issue with the pre-image used to create Council Motion 99 (Referendum 22) so it has now been re-submitted with the pre-image 0x618aabc5d8e98df5951701288881ef87544cd8821266aa2a9066c4f3455520c7
0x618aabc5d8e98df5951701288881ef87544cd8821266aa2a9066c4f3455520c7
Detailed explanation on the forum here.