Upgraded a few days ago, everything seems fine. Just word that there are some issues registering new participants/payments, the UI "hangs" on submitting the form, but still records the participation.
Trying it myself, as administrator, I could see that an error was being generated during the transaction, breaking the ajax UI for non-admins.
DB Error: No such field.
After looking at the logs, it becomes pretty obvious that the error is being caused by a bad query relating to civicrm_activity. It would also explain why the registrations are being recorded despite the issue.
[nativecode=1054 ** Unknown column 'a.weight' in 'field list'] [type] => DB_Error [user_info] => SELECT a.id as `id`, a.source_record_id as `source_record_id`, a.activity_type_id as `activity_type_id`, a.subject as `subject`, a.activity_date_time as `activity_date_time`, a.duration as `duration`, a.location as `location`, a.phone_id as `phone_id`, a.phone_number as `phone_number`, a.details as `details`, a.status_id as `status_id`, a.priority_id as `priority_id`, a.parent_id as `parent_id`, a.is_test as `is_test`, a.medium_id as `medium_id`, a.is_auto as `is_auto`, a.relationship_id as `relationship_id`, a.is_current_revision as `is_current_revision`, a.original_id as `original_id`, a.result as `result`, a.is_deleted as `is_deleted`, a.campaign_id as `campaign_id`, a.engagement_level as `engagement_level`, a.weight as `weight`, a.is_star as `is_star`, a.created_date as `created_date`, a.modified_date as `modified_date` FROM civicrm_activity a WHERE (a.source_record_id = "77904") AND (a.activity_type_id = "6") LIMIT 25 OFFSET 0
I can confirm that my civicrm_activity table DOES NOT have the weight column...
Does anyone have any experience with this kind of nuttiness?