We are having a very strange issue where it seems that after a seemingly arbitrary amount of time a file from one of our build agents gets copied to another.
I will try to illustrate the example:
Both build agents are building the same configuration, so they share a working directory name:
During our build proccess, we generate a file LatestDate.txt in the root of the working directory.
The build runs on BuildAgent1, and the file appears correctly in the root of c:\BuildAgent1\work\235235bf39523e353
Some amount of time later, the same exact file (with the same timestamp) appears in the root of the other build agent c:\BuildAgent2\work\235235bf39523e353
We do not have any scheduled tasks copying the files or anything like that.