yes, I tried the latest version, the promblem remains.
But, I’v tried it on a tested website with the following step.
1. build a new tested website, and activate wpdm(the old version 4.62), create a new download. I can access the website with 80/http, everything is ok.
2.create a custom template
3.enable https, it seems everything is ok
but on my online website, the problem is still there.