When attempting to load an existing masking CSV file, which uses a SQL Server seed list table, I'm not able to progress to run the masking job. I am able to select the connection file from the drop-down and select the seed-list once the connection is established, but there is no way to proceed from the Windows dialogue screen. Seem there is no button to accept or 'OK' button (which is missing from the seed list connection pop-up).
Engineering thinks the root cause for your user is the Windows 10 display settings. Looking at the screenshot, it appears the Windows 10 display for your user is set to 150%. The original FDM was implemented long before Windows 10, so it doesn't support non-default scales very well.
Release : 4.9.1
Component : Fast Data Masker
There are a couple of options to correct this.
Note: This behavior is more related to the embedded JRE that now ships with the more recent FDM releases, than with FDM itself. After applying the FDM patch, you still need to configure Java's behavior for high DPI settings. These steps can be applied for all users that access FDM, if you wish. Technically, you can make this change without applying the new patch, since this is related to the behavior of Java. This will fix the dialog window so that the buttons are displayed. However, the rest of the UI won't scale as it did with older versions of FDM.
To configure Java: