Tabular layout issue

Hi,

You are right that the separator is there in both, so it is not a missing read more. I checked the source of your English product page and the marker is saved there as:

without the closing slash, while HikaShop looked for it in the self-closing form, as Joomla normally adds it:The version without the slash was not recognized, so the marker was neither removed nor used to cut the text, and the whole description ended up in the tab. Your Greek text keeps the slash because it is saved through HikaShop's product form, while the English one lost it when it was saved through Falang's editor (both forms are valid HTML, which is why the red line still shows in the editor).

We have made HikaShop accept both forms, so this is fixed in the next release.
To get the changes, download the install package of HikaShop on our website and install it on yours.
Once you update HikaShop the tab will split correctly again, with nothing to change in your translations.

Yes, via our contact form.

Thanks.
The issue is that you have a custom layout for that product and so you didn't get the modification for it. I've applied the modifications for that view override for you and it works fine now.