For the operation of SIGMA Photo Pro 6.3.0, please be informed that the following two phenomena are identified when it is used with Mac OS X El Capitan v10.11.

1. The Main Window does not appear soon after starting up SIGMA Photo Pro 6.3.0
Depending on the computer environment, it could take about 3-10minutes for the first operation of SIGMA Photo Pro 6.3.0 on Mac OS X El Capitan v10.11 to show thumbnails in the Main Window, due to construction of a new system file.
Please leave it for a little when SIGMA Photo Pro 6.3.0 is opened for the first time. After the initial operation, the start-up of software will be back to normal.

2. Abnormal termination of SIGMA Photo Pro 6.3.0 after clicking on external HDD
Depending on the computer environment, SIGMA Photo Pro 6.3.0 might cause abnormal termination when an external HDD in the folder tree is clicked.
In that case, please copy the image data in the Macintosh HD first, and then boot up SIGMA Photo Pro 6.3.0 to adjust and save the image files.

We apologies for these inconveniences above, and will further investigate on the phenomena to release more information to our customers.
We appreciate your understanding and cooperation.