I noticed another older topic where someone replied recently about this issue and you said to make a new topic. So I'm doing that as well.
Basically when I edit a file on a remote system in Sublime Text and save it it's not auto uploading. When I edited it with the internal editor it seemed to upload fine.
This only started happening after I updated to the latest WinSCP version which I think was an RC that it wanted to auto update to.
I downloaded and installed the latest version of WinSCP from the Download page 5.17.10 (Build 11087) and it works fine there.
I attached some screenshots of the Editor preference screen.