Hi VladV,
When sharing builds I would recommend using systems that are setup for version control like Perforce or Subversion.
[You can find more information in this topic being discussed on the forums.][1]
Some things to consider with GoogleDrive would be if it is overwriting all files with the latest build you load or is it only overwriting some? It would seem there is something in the way GoogleDrive is handling the files rather than UE4. If you upload a separate folder with the complete project for your team member to use does this cause an issue as well?
Thanks!