Initially, check that the synchronise process has been run - try redoing it if unsure.
If that is unsuccessful, then try the following in one of the affected projects:
Edit the project record and make a minor change - eg a full stop in the description - then save the change.
Repeat the process for the affected cost centres
Retry the synchronisation process.
If the above process does not work, try the below:
Change the project record Status to Completed
When saving the change, say Yes to the message relating to cost centres.
Synchronise the Projects and Cost Centres to expense
Return to the project and set as Active (saying Yes to the message re Cost Centres)
Re-run the Synchronise process.
If this does not refresh the Expense data, our support team will need to investigate, run scripts or liaise with the hosting or development teams. Any Issues with contacting us, please see the following Get support in Access Financials.