Sydney slider css interfering with widget slider visibility

Can someone point me in the right direction to figure out what in the theme’s css might be interfering with widget slider css when trying to display text in a widget slider like ultimate post slider widget? I assume it has something to do with bxslider use, but I am not sure where to begin to fix the issue.

Hello there,

Is there any live URL where I can see the trouble?

Regards,
Kharis