Multiple Spaces (Workspaces) for Bookmarks and Bookmark folders no longer work

[PEC-IT2026]

Preliminary Checks

• I have read and understood the important section above.
• I have searched existing issues and avoided creating duplicates.
• I am not filing an enhancement request.
• I have checked that this issue cannot be reproduced on Mozilla Firefox.
• I have checked that this issue can be reproduced once I removed all my Mods and Custom CSS.

What happened?

On an older version of Zen, I was able to connect bookmark folders and bookmarks to multiple spaces.
On the newest version of Zen on a new computer, I sync'd my Bookmarks and then started setting up my spaces again.
When editing a folder or bookmark, I am allowed to select more than one space. Clicking Save doesn't show any errors. Then, reopening the folder/bookmark settings show no spaces are mapped.
By contrast, if I only select one space and save, the settings save correctly and persist. I am unable to connect another space after connecting to only one; it keeps my original selection and doesn't add the additional space I selected.

From what I experienced it seems like the multiple space configuration for bookmarks stopped working. If there is something odd about this process to set up Zen on a new computer let me know:

1. Install latest version of Zen
2. Sign in to get Bookmarks to sync
3. Set up Tab Containers
4. Set up spaces and connect them to Tab Containers
5. Customize Bookmarks to associate different folders and bookmarks with different spaces

I like this method of setup and it worked really well when it was working. For example I could have a main "Expenses" folder linked to two spaces, and then only show specific bookmarks to different spaces so I don't log into the incorrect account.

Expected behavior

Map a bookmark folder or single bookmark to more than one space

Actual behavior

Multiple space selection results in no changes saved. Only one space selection is saving successfully.

Steps to reproduce

1. Set up at least 2 container tabs
2. Set up a space for every container tab and make that profile associate with each container tab
3. Edit a bookmark (or bookmark folder) and attempt to map that to more than one space and Save
4. Open bookmark settings to see the changes were not saved

Screenshots and videos

No response

Version

1.19.1b

What platform are you seeing the problem on?

Windows - x64

What component is this issue related to?

Bookmarks

Relevant log output if applicable

[Dcfunkster]

I'm having this issue too. To narrow down the issue a bit more, I'm only having the issue if I select more than one space that aren't right next to each other in the list (e.g. selecting spaces 1, 4, and 5). Selecting two spaces next to each other seems to work for me.

Also related? Changing the state of a bookmark (e.g. changing the space its in, or deleting it) doesn't take effect until you navigate away from the space you made the change and then back.

MacOS 26.3.1 // Zen 1.19.2b

[mr-cheffy]

I think it happens to all OSs, but I have yet to reproduce it

[PEC-IT2026]

Also related? Changing the state of a bookmark (e.g. changing the space its in, or deleting it) doesn't take effect until you navigate away from the space you made the change and then back.

I noticed this prior to the multiple space bookmark issue. I think it should be tracked as a separate bug if it isn't already.