Progress bar play head color changes after published

Hello, I’m facing a weird issue when publishing files. The color of the playhead in the progress bar changes when published. Changes from white to black as shown in the attached. Any clue on why this could be? Thanks!

Captivate 8 Vs 10 (2017 version)

Hello,I need to use Captivate for an upcoming project. I have used Captivate 8 before, but now I have the option to install Captivate 10. Should I go for the 10 version because its latest? Or can I use 8 because I have already worked on it and quite familiar with the functionalities? TIA