Hi,
HikaShop has no influence on the display of Joomla articles.
So it's not possible that having HikaShop installed makes the Joomla articles not display properly.
And the "do not display the intro text into article view" of Joomla has no influence on how HikaShop display products.
HikaShop doesn't handle content tags before the read more tag on listings in order to reduce the amount of processing on listings.
If you to have them replaced, you'll have to edit the view file you're using on your listing of products, and change:
preg_replace('#<hr *id="system-readmore" */>.*#is', '', $this->row->product_description)
to:
JHTML::_('content.prepare',preg_replace('#<hr *id="system-readmore" */>.*#is', '', $this->row->product_description))
www.hikashop.com/support/documentation/1...-display.html#layout
And yes, HikaShop displays both the text before and after the readmore on the product page.
If you don't want that, you can edit the show_default view file and change the code:
echo JHTML::_('content.prepare',preg_replace('#<hr *id="system-readmore" */>#i','',$this->element->product_description));
to:
echo JHTML::_('content.prepare',preg_replace('#.*<hr *id="system-readmore" */>#is','',$this->element->product_description));