Los videos se eliminan al guardar el documento

-- HikaShop version -- : HikaShop 6.6.0
-- Joomla version -- : 6.0.0
-- PHP version -- : 8.3
-- Browser(s) name and version -- : safari 26.2 // chrome 153.0.8010.53

I don't know how to resolve the HikaShop security issue preventing YouTube videos from working.

In the "Text Filters" tab, I’ve already changed the filter type to "No Filtering" for my Super Administrator account.

I’ve also enabled iFrames in the text editor (TinyMCE) by removing the word "iframe" from the restricted list and adding `iframe[*]` to the "Extended Valid Elements" setting.

I’ve tried countless other suggestions, yet the results are always the same: the layout breaks, the videos fail to load (or only the text link remains), or they appear correctly at first but vanish when the document is saved.

I use Safari and Chrome with HikaShop Starter 6.6.0. The problem doesn't occur when I insert videos into standard content articles; it only fails when I do so within HikaShop content.

Can you help me solve this problem without having to scrap the project and switch back to VirtueMart? Thanks.