Hi @frantizek
I hope you are doing well.
I have checked the EB Post Carousel and EB Woo Product Carousel on my live site using the latest version of the plugin. But I didn’t find any issues. Here is the screen recording of how I set up both of them: https://d.pr/v/vDvvzW
Here is the screencast of my mobile device using Chrome: https://d.pr/v/2RcvLv
You can also check our demo page here: https://essential-blocks.com/demo/post-carousel/
https://essential-blocks.com/demo/woo-product-carousel/
So, could you please try to check for plugin conflicts by following this:
Plugin conflict check: Often, we see problems occur in combination with another plugin or theme. The fastest way to rule out any conflict is to temporarily deactivate all the plugins except Essential Block, Essential Block PRO(if any). Simply go to your WordPress Dashboard and navigate to wp-admin => Plugins, and then deactivate other plugins.
After deactivating all plugins, check if the issue still persists. If the issue goes away, then a plugin conflict is likely.
Enable plugins one by one: Reactivate your plugins one by one, checking the website after each activation to see if the issue reappears. This will help you identify the plugins causing the conflict.
Besides, you can switch to a different theme like Astra, Flexia, or Twenty Twenty Three. And, check back as well.
Let me know how it goes. If you are still facing an issue, please share your page URL, after updating to the latest version, so that we could check, if there is any console error or not.
Thank you!