This just happened to me as well. All my local files were deleted and it refuses to restore them. They were deleted from the onedrive cloud at least, so that’s good.
I’m afraid this happened to me too.
I’ll send the logs to insyncHQ
Hamster
And another one.
This evening, I suddenly found my entire local OneDrive folder empty.
The trigger might have been, that I renamed a link that pointed to “Images” in the OneDrive base folder.
First I did not think about InSync as being the culprit. Why should I? But I found each and every file and folder in the trash bin. Not just deleted, but recursively emptied inside out. You can’t do this by chance by just “clicking wrong”.
It was a PITA to get all the files out of the trash back to their original location.
But now InSync is refusing to recognize the content. It starts to scan, tries to sync a few file and then stalls. It declares the base folder as “empty”.
I’m really “not amused”. So how get the structure synced again without deleting everything again and try to download from the cloud? It’s quite a big folder…
And another one.
I’m now also affected by this issue. All local OneDrive files deleted. I just sent the log files to support and will see, what I can do to bring Insync back to life.
Hi @smallfreak! My deepest and most sincere apologies for what happened. Kindly refer to my response here to know how to put things back in order.
@Markus_Feiter My apologies as well for the ongoing issue 
I have responded to your email.
Deleting the OneDrive Account within InSync and recreating it in the same place did indeed help.
It took quite a while before all files and folders were tagged “synced” again, but the traffic was very moderate.
It took me some time until I found the correct “how to remove account” procedure as shown here.
The color decision “almost black text on totally black background” is improvable, especially if you have a well lit work place 
Hi @smallfreak, you are definitely not the first and last to point out the UI/UX improvement here. I’ll be taking note of this so we can line it up accordingly.
Thank you for updating on how the re-sync went. 
Hi @mia
I can see the thread has been unpinned.
Has this been resolved? I can’t see anything in the release notes of the previous versions.
I just faced the issue today and lost 200GB of local synced files from Onedrive. It started yesterday by duplicating everything in a folder, beliving that I didn’t had the local copy and creating every file again with “(2)” suffix. Then i stopped insync to stop the massacre and cleanup this dir, resynced it with rclone and restarted Insync. Then Insync started deleting everything. I saw something was weird and could stop it before it deletes all my 600GB of data.
Copy is ongoing with rclone to get back my files from OneDrive, where nothing has been deleted. But that’s taking a while, and my trust in Insync is… well… I don’t believe I can dare to run it again at the moment.
I completely understand your sentiments, @bouil! This issue is still under priority investigation, and I’ve sent a follow-up to our engineers. Will also check why this topic was unpinned.
May I know if you’ve tried to remove-readd your OneDrive account?
@mia No, I won’t risk re-enabling Insync and losing all my files again, until this issue is fixed.
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@bouil I completely understand! I will post an update here as soon as I have more information from our engineers.
Same for me, Linux Mint 22, Insync 3.9.6. I have duplicated a file (ctrl+c and ctrl+v) and all my files gone. Now I see “This location is empty”. This is a OneDrive Personal Account
Hi @Mo82,
Apologies for the huge trouble here. Could you please do the following:
- Send an email to support@insynchq.com with the following: your logs.db and out.txt files which can be found in
~/.config/Insync. Please also provide the name of the file you duplicated. - Remove + re-add your OneDrive account as shown here.
Thank you!
The same happened to me today. All local files gone, files in the cloud (Onedrive) untouched fortunately. I purged insync (did not backup logs, dummy me…), installed the newest version 3.9.6.60027 for FC36, and am running a full resync now (~100gb). I am on OpenSuSE Tumbleweed.
Note: I have been with Insync for several years now (and paid for the original expensive Developer’s licence) and have not noticed much progress. Good thing is that Insync mostly works, except for occasional unexplainable duplicates, conflicts, and deleted files that I must recover in the cloud. Anyway, I believe that there is much room for improvement.
Haven’t you thought of a better business model that would allow for faster yet trustworthy development (like opensource)? It is about personal data afterall…
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@mia Is there any further update on this issue, as we are facing problems causing this.
After re-installing the Insync the behavior is annoying— if we are creating any folder locally, first it is uploading on the onedrive after uploading, it is auto removing the same from local directory and then re-download the same.
My apologies for taking longer to provide updates on this! There have been several API updates that are causing issues. Our engineers continue to prioritize them to align with the updated behavior, and therefore prevent these issues in the future.
Rest assured that I will be updating this thread as soon as the fix is available. We appreciate your patience and understanding regarding this.