Vimeo videos not showing thumbnail while loading

We are experiencing an issue with the integration of Vimeo videos in BeTheme.

When we insert a Vimeo video using the builder, the thumbnail that Vimeo normally displays by default while the video is loading does not appear. Instead, the video area simply remains empty until the video has fully loaded at maximum resolution.

We’ve seen previous support replies mentioning the option to set a custom placeholder image, but we understand this applies only to self-hosted videos. In this case, we are referring to Vimeo’s native functionality, which should automatically display a thumbnail during the loading phase.

It seems that the BeTheme builder is preventing Vimeo from showing its default thumbnail.

Could you please check this or confirm whether this is a known issue?

Thank you in advance.