Hi,
The trash button is there to delete the view override ; the view file stored in the template folder.
In your case, there is no corresponding view in the HikaShop view folder ; but because your file is in the template, it is still see as an override.
So there is no bug ; the button did what it has to do.
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.