Hi @west7
Thank you for your fast respond.
I guess the image is blurry cause by the php file that i have updated. I actually forgot to check my website after updated it. silly me.. after removed it, my image is ok now.
Regarding the featured image, yes i tried as you told.. and its looks good now.
However its kind of manual job for me.. but i think i should follow your advise as I’m not good at coding.. haha.. anyway thank you so much.