Video Thumbnails disappear on mobile

[Warul Kawa]

Hi!
The video thumbnails displayed by the Project Thumbnail Grid disappear on mobile, although every project also has a featured image

The website is personapersonapersona.com

Appreciate any help, thank you!

[Richard]

Dear @Warul-Kawa

Is this still an issue? When testing on Chrome, Safari & True Mobile:

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Best

Richard