This is sort of an issue.
Files with path around 300 will not open in sublime. This was reported back in 2013 : Cannot open file correctly when the path is too long for ST3 Build 3047
Now it is 2017 and it is still there in Build 3126.
I read that the 260 path length windows limitation was removed a while ago. I do not see why this issue was not fixed (even notepad++ can open long paths ). It is a shame a free tool can do more than a tool I paid for.