Hi, we're using Responsive Slider version 0.1.8 for our site. This plugin add a new option "Slides" to your admin menu and then you are able to create slides in the same way as pages or posts.
With Polylang 0.9.8 there was also a language option available for each slide, but after upgrade to current version 1.0.3. this language option is no more available (there is no language box when you are creating/editing slide).
Only way how to solve this was downgrade back to 0.9.8. Is possible to use current version of Polylang with available language option as was in previous versions?