Certificate Warnings and Mosaic 2.16.5
Issue
Mosaic Designer 2.16.5 released in early September of 2026.
Users of this software might see a certificate warning when Mosaic Designer is run.
This warning will look similar to the below image.
Note for users of the the Mosaic Designer software the warning will indicate the application of "Mosaic_Designer_2.16.5".
If you see this pop-up choose 'Run anyway'.
Explanation of Issue
This popup appears due to use a new certificate with 2.16.5.
This warning message should not appear long term for any user and will show with less frequency as installations of 2.16.5 increase.