Order of images and thumbnail selection

Hi,

I keep having this problem when adding images to the realty that it likes to randomly choose one of the photos as the thumbnail and not use the first uploaded image. Why is it doing this and how do I stop it or at least get to choose which image is used for the thumbnail??

Regards

Hi ghudson!
I'm sorry. Now, My module will choose image randomly.
we are updating all product and hope will update funtion for this problem.
Thank you so much for sympathy.
Best Regards,
Huyen Tran