Product Image upload limitation

-- url of the page with the problem -- : www.niagaraparkit.com/oztimber
-- HikaShop version -- : 3.2.1
-- Joomla version -- : 3.8.1
-- PHP version -- : 5.6.98

I am unable to upload / save images to the product page of a size around 3Mb.
The server 'memory_limit' is 52M (no space between 52 and M)
and the upload limit in Joomla is 10M

Having gone through some topics here I have added:
namekey "image_check_memory" and the value "0" in the hikashop_config table via PHPMyAdmin.

I am still not able to save that size into HikaShop - I tried several images just in case that one might be corrupt.
The image is however found in Media > com_hikashop > uploads
I can upload an image with 176KB no problem.

Screenshot of attempted upload in backend attached.

What do you think is happening here?

Increased
memory limit
and
max execution time

and it works now

'hope this helps someone here