The "Aria Session Loader: This session was made for.." message will appear when opening a project that was saved using a newer version of the ARIA Engine than is currently on your computer.
You can resolve this issue by reinstalling the and reloading the ARIA Player plugin in your digital audio workstation. You can find the latest version of the ARIA Player here: ARIA Player Installers.
We recommend that you use the latest version of the ARIA Engine that's provided with the ARIA Player and not download any standalone updates for the ARIA Engine. This can help avoid this error is the future.
If you are frequently working between Mac and Windows then you may see this option more frequently than others as the provided ARIA Engine differs between operating systems. In that case, you may want to install the latest version of Plogue's free Sforzando plugin on both your Windows and Mac devices as it contains a matching ARIA Engine between the two operating systems that the ARIA Player will use as well.
Please use the Submit a Request button above to reach Customer Support directly if you have any additional questions.