Synchronize dirs - some files won't synchronize - red sign

[akurzawa]

Hi

I've a problem with dir sync - some files are marked with red no entry sign, and I cannot set copy direction on those files. Why this is happening and how to overcome this problem?

https://pasteboard.co/J5SglvS.png

[ghisler(Author)]

They seem to be files where the same file exists with different upper-/lowercase in the same directory. This can happen with FTP servers, or when enabling case sensitive file system functions for a folder.

If you show equal files too, you will probably see that there are two files which only differ in case.