## .ztmp filename issue

I'm on Zcm 11.2,2
In a bundle I do a copy file action as dynamic administrator with network access.
The file is rathter big. Sometimes the file does get the ending .ztmp right at the time the copy action is over. The following action then of course cannot accers that file due to its new fileextension. When I remove the .ztmp the file works, so the copy process indeed was finished and transferred the file correctly. This does not happen all the time, it seems random.
Any ideas of how to circumvent it?