Adobe Photoshop and Autodesk 3ds Max create a temp file when saving a file, located alongside the actual file being written until the save is completed.
On large files, that take a while to save, the dropbox client starts to sync these files which has caused the following issues for us:
3ds Max
If a user perfoms two saves in quick sucession and dropbox is syncing, 3ds max throws a "file is possibly corrupt error" as the temp file is locked by dropbox. We now cannot save to open a new file until dropbox has caught up.
Photoshop
We have experienced the app crashing and the PSD file being removed from local dropbox during a large file save. Whilst we can restore the deleted file on dropbox.com, these are likely to be be out of date as the file was only just worked on locally. This means we lose work, which is not acceptable on a Dropbox Business Advanced plan.
Please can you add the ability to exclude files from sync by pattern/extension, even if only for paid plans.