FMX.TMSUtils.pas fatal error OSX64

[dccosx64 Fatal Error] FMX.TMSUtils.pas(374): F2051 Unit Macapi.AVFoundation was compiled with a different version of Macapi.Dispatch.dispatch_block_t
I receive the above error when compiling under osx64 debug or release.  I am using Delphi 10.3 update 2, and the most recent FMX UI and flexgrid installed yesterday.
The installed sdk is MacOSX10.14.sdk.
How do I proceed?

Please make sure you clean and rebuild your application for the OSX 64 bit target.


Cleaning and rebuilding did not help.  Still  getting the identical error.

Did you install the latest version of RAD Studio with all updates?

10.3.3 in December.  Not aware if there is a new update

Are you able to reproduce the issue if you add MacApi.AVFoundation in the uses list of a new empty osx64 bit targetted project?

This was helpful.  A blank project has no issues.
A project with a TMSFMXGrid has no issues.
Would you suggest that I create a new project, bring everything over (it is a rather large project) or once i have the project, edit the project file?

Perhaps you can indeed try to create a new project and see if the issue occurs again after transferring all units, components and code.