Failed to map parentId to Server

[cjpalermo21]

Which version of floccus are you using?

5.6.0

How many bookmarks do you have, roughly?

20k

Are you using other means to sync bookmarks in parallel to floccus?

No

Sync method

Google Drive

Which browser are you using? In case you are using the phone App, specify the Android or iOS version and device please.

Firefox 144.0.2

Which version of Nextcloud Bookmarks are you using? (if relevant)

No response

Which version of Nextcloud? (if relevant)

No response

What kind of WebDAV server are you using? (if relevant)

No response

Describe the Bug

My own fault - I haven't synched in a month (so I also had to disable the failsafe). I've been using my laptop exclusively.

But, I tried to synch today; and got this error:

Failed to map parentId to Server: xPID9NjMG0Z5 | Last synchronized: 1 month ago

Expected Behavior

The bookmarks should sync without error.

To Reproduce

I simply tried to sync (although, it's been a month since I've last done it)

Debug log provided

• I have provided a debug log file

[github-actions]

Hello! 👋

Thank you for taking the time to open this issue with floccus. I know it's frustrating when software causes problems. You have made the right choice to come here and open an issue to make sure your problem gets looked at and if possible solved. Let me give you a short introduction on what to expect from this issue tracker to avoid misunderstandings. I'm Marcel. I created floccus a few years ago, and have been maintaining it since. I currently work for Nextcloud which leaves me with less time for side projects like this one than I used to have. I still try to answer all issues and if possible fix all bugs here, but it sometimes takes a while until I get to it. Until then, please be patient. It helps when you stick around to answer follow up questions I may have, as very few bugs can be fixed directly from the first bug report, without any interaction. If information is missing in your bug report and the issue cannot be solved without it, I will have to close the issue after a while. Note also that GitHub in general is a place where people meet to make software better together. Nobody here is under any obligation to help you, solve your problems or deliver on any expectations or demands you may have, but if enough people come together we can collaborate to make this software better. For everyone. Thus, if you can, you could also have a look at other issues to see whether you can help other people with your knowledge and experience. If you have coding experience it would also be awesome if you could step up to dive into the code and try to fix the odd bug yourself. Everyone will be thankful for extra helping hands! If you cannot lend a helping hand, to continue the development and maintenance of this project in a sustainable way, I ask that you donate to the project when opening an issue (or at least once your issue is solved), if you're not a donor already. You can find donation options at https://floccus.org/donate/. Thank you!

One last word: If you feel, at any point, like you need to vent, this is not the place for it; you can go to the Nextcloud forum, to twitter or somewhere else. But this is a technical issue tracker, so please make sure to focus on the tech and keep your opinions to yourself.

Thank you for reading through this primer. I look forward to working with you on this issue! Cheers! 💙

[cowboysmall]

I am experiencing this exact issue - on both Chrome and Firefox.

[marcelklehr]

Hi @cjpalermo21
Thanks for taking the time to give feedback by opening this issue. I'm aware of this kind of error, but haven't managed to squash all instances of it.

In the meantime you can try to trigger a sync from scratch in the settings of the profile that errored. Make sure you have a backup of your bookmarks before you do this, and check your bookmarks for deleted bookmarks that may have come back. You can be sure that nothing will be deleted in this step, though.

This is the button to click:

And make sure to click on save afterward.

I hope this helps. Let me know if this works for you.

[defect-track]

Run into a similar issue floccus 5.6.0, Linkwarden 2.13.1 and latest Brave on MacOS Sequoia:

> 2025-11-14T10:05:12.349Z Filtering out invalid server bookmarks
> 2025-11-14T10:05:12.349Z Generating indices for local tree
> 2025-11-14T10:05:12.350Z Generating indices for cache tree
> 2025-11-14T10:05:12.351Z Generating indices for server tree
> 2025-11-14T10:05:12.352Z { localTreeRoot: 
>      + #2[undefined] parentId: undefined, hash: undefined
>        - #3[hetzner_ddns/hetzner_ddns.sh at master · filiparag/hetzner_ddns · GitHub](https://github.com/filiparag/hetzner_ddns/blob/master/hetzner_ddns.sh) parentId: 2
>  ...
>       Action: REORDER
>       Payload: #670[[ reverse IPv6 DNS]] parentId: 669 Order: [
>       	{
>       		"type": "bookmark",
>       		"id": "671"
>       	},
>       	{
>       		"type": "bookmark",
>       		"id": "672"
>       	},
>       	{
>       		"type": "bookmark",
>       		"id": "673"
>       	}
>       ] } }
> 2025-11-14T10:05:12.764Z Checking deletion failsafe: 0/630=0
> 2025-11-14T10:05:12.764Z Checking addition failsafe: 0/630=0
> 2025-11-14T10:05:12.765Z Checking deletion failsafe: 632/621=1.0177133655394526
> 2025-11-14T10:05:12.766Z Syncing failed with E029: Failsafe: The current sync run would delete 102% of your links. Refusing to execute. Disable this failsafe in the account settings if you want to proceed anyway.
> 

Luckily "Failsave" is enabled to not redo them all gain.

The trick "reset cache" as described above solved it! No bookmarks lost nor duplicated added.

Hope it helps other solving....

[cowboysmall]

"reset cache" didn't resolve the issue for me.

Because I relied on floccus to manage my bookmarks, and because I had lost lots of bookmarks due to this issue, I had to jump through hoops to restore most of my lost bookmarks by taking a backup of the Bookmarks file in .config/google-chrome/Default on one of my laptops where I had not opened chrome in a few days - unfortunately I did not have a backup exported of my bookmarks.

The reason I used floccus was to sync bookmarks across different browsers - I used chrome's sync to sync across chrome instances, but I wanted to be able to easily sync bookmarks on firefox, etc. I definitely do not want to ever go through this process again. I have decided to disable floccus and look for a different solution - in the interim I will go through the pain of manually managing bookmarks by regularly exporting my bookmarks and manually importing them when appropriate.

Thanks very much for floccus - it was a great idea that filled a gap in my workflow, but unfortunately it has not proven to be as reliable as I would have hoped.