Filename with colon will not sync

I have several file names that will not sync. This is happening on several different PC's and a Mac. It's also is happening on my local testing server and my remote hosting server. This problem seems to be a Dreamweaver issue.

I have deleted all of the dwsync.xml files with no change. I finally made a file name with 100 characters that did sync. I added 1 colon to the name and it will not sync. I have colon's in my filenames because I'm adding a timestamp to the name so 12:37:03 in the filename prevents it from syncing. Is this a bug in Dreamweaver? I cannot find any documentation on this issue. I can replace the colons with underscores and the file does sync. 12_37_03 works.