We upgraded to 6.4.8 and sumup no longer works, this is used by multiple teams (all of whom are complaining) looking at your tickets it may be related to the below?
https://decadis.atlassian.net/browse/SUM-32
Please confirm if this is the same issue, note we do not have summations either on dashboards or in filter results.
I can see the above ticket is in dev at present is there an eta on a fix? is there somewhere that incompatibilities like this are noted?
Thanks