Prestashop 1.6 CSV image problem

[houzhongqiu]

Hi, All.

 

I have 2 sites, one is PS1.5 another one is PS1.6

 

I export PS 1.5 Products to PS1.6

 

My site of PS 1.6 already have some products on it, after I imported CSV from PS 1.5

I found some problem image is mix, 

 

Anyone know what problem is it? in backstage the thumbnail is wrong,but in front the photos is correct, 

I already "REGENERATE THUMBNAILS" do this, but the problem don't solve it.

 

if i edit the product delete picture and reupload again, the thumbnail  will be correct, any one know what problem is it?