Hi,
Thanks for the access.
When you have a product with variants, you can set a description for each variant but if you let the description empty, it would display the description of the main product.
In your case, you had two descriptions for your two variants so, the link where wrong because the description of your variants were wrong.
You could edit the description of the main product but it would use the description of the variants that's why you thought it wasn't updated.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.