Editor: 2019.2.0f1 Personal Collaborate: 2.0.0 preview.17 This issue has happened several times to me and my teammate who I collaborate with. After one successfully uploads changes, the other will try to download those changes. Sometime during the download, we will get a "File is Missing" error. There is no error in the console, just a red banner which appears across the top of the collab drop down with that message. It then shows like it is ready to try again, but it won't ever download successfully. Tried: Closing and reopening editor Making small changes and sending another upload from the user who sent the original upload Looked online and found this: https://forum.unity.com/threads/file-is-missing-error.456186/ Seems like this was an issue before, and was supposedly fixed, but obviously not totally. We have now had to use the "delete whole project and download everything again" resolution, which is a poor solution. We have over 20GB of data in collab, and it causes painful disruptions when this happens. Expectations: 1. Please fix this issue 2. What causes this to happen? I would like to know EXACTLY what causes this, so we can avoid those actions in the future 3. Are there any other solutions which we can use to fix this, without needing to re-download everything again?