First tab carousel always broken/compact

Hello,

I’m running into a persistent bug with the Product Tab (AJAX Product Tabs) widget: the product carousel inside the first tab always renders broken — extremely compact/small slides — while every other tab displays correctly with the exact same settings. It happens both on the live front-end AND inside the Elementor editor itself (live preview), which rules out caching or hosting-level causes.
Since it reproduces on a blank page and inside the editor itself, this looks like a genuine widget bug rather than a site-specific conflict.

Has anyone else run into this, or is this a known issue on your end?

Thank you!
Message translated with AI because I am French