This has been fixed for all new items, so when adding multiple items to a shared tab it should now calculate the proper amount.
For all past items to be reflected accurately, you’ll need to:
Find all the items that had been calculated incorrectly. This would be all items which were added by selecting multiple transactions. Like in the screenshots above, typically you can spot them by identifying multiple transactions with the same amount larger.
Delete each incorrect item
Re-add the items
Once you’re done, the amount each person owes will be corrected - even if they had already settled the tab.
We’re sorry about this issue, and re currently working out what next steps we need to take with all impacted customers.