After downloading automatically the latest version from the software, the installer setup wizard displays a page giving the option to Modify, Repair or Remove the installation.
A .msi installer file of the current version already exists in the Download folder and is not replaced by the latest .msi.
1. Cancel the installer.
2. Remove the .msi file from the Download folder
3. Open Pix4Dmapper and download again the latest .msi
4. Follow the installer instructions
Solved for version
Next 1.2 bug fix release