You may see an exclamation point on your project if there was a change at the organization level or at the project level.
Project level changes are more obvious, but here are some changes at the organization level that can cause your projects to recalculate:
1. New exceptions added to your organization calendar
2. Changes to rates/costs
3. Changes to currency rates
4. Changes to user billing/cost rates
5. System Settings
Please contact your Clarizen Administrator to verify if any of these changes were made.