Video Files are not playing

[twoDarc]

Hello
I have created a virtual tour with both images and videos. when I generate output and create ggpkg, the videos do not load and play. just loading icon
what is its problem and how can I fix it?

[k.ary.n]

Are they not loading on a mobile phone? That looks like an iPhone screenshot. If so, they could be too large in resolution.

Add an alternative video file (not larger than 4k) to your project. The browser will then pick that video that it can play.
https://ggnome.com/doc/panel-properties/#input-video