Hello,
We found that you had selected custom size for images but with no values -> https://prnt.sc/5TBjphvkpyO- ? => We changed it for you to medium (because it could be one part of the issues you have)
Secondly, we disabled the loop option for this slider -> https://prnt.sc/OgFL_lB2h3eX , because this could also create such issues for you.
We cannot replicate this issue on any of our team member’s devices and it is strange for us that you have such one, so we cannot fix the issue, because we cannot replicate it from our side, unfortunately. We would recommend you (if you still have this problem after our changes in options above) to change that widget to an alternative one or similar:
1/ https://prnt.sc/xbM8XjLR2H4l (Gallery/Basic Gallery/Media carousel)
2/ try to contact Elementor support with such an issue (because it is their default widget you are using now ).
Regards