Global Parameters broken with groups in Revit 2025

[rick.vandelagemaat]

In Revit 2025, it's no longer possible to attach global parameters to elements in groups without causing issues. This has been tested on Revit 2025.3 and 2025.4, across different machines.

Normally, we would set the bottom and top offsets of our walls to global parameters. In Revit 2025, changing these global parameters breaks the model groups, triggering the well-known "Fix Groups..." options.

Additionally, when I select a wall in a different group instance, the global parameter is not applied to that wall, but only to the group instance I started with.

This behavior almost resembles like project parameters with the option "Values can vary by group instance."

It seems this issue specifically affects walls. When I tested it on a generic model, the behavior was normal, and the group did not break. I am unsure which other categories or parameters might be impacted by this bug.

Has anyone else encountered this issue or found a solution to fix it?

[RDAOU]

@rick.vandelagemaat 

EDIT: 

If you can paste a group in an empty model along with its global parameters, I can check it on mine. If you paste it in a blank model and it works for you then the issue/bug is not in Revit but the model those groups were in

[azad.Nanva]

@rick.vandelagemaat 

This is an issue and it's fixed in 2026:

[rick.vandelagemaat]

Thank you for the quick reply!

It works perfectly if there is only one group instance of a specific group type. The issue starts occurring when there are multiple instances of the same group type.

I even tested this in an empty Autodesk template.

I have uploaded the file as an attachment. If anyone could try testing this file by changing the global parameters and checking whether they encounter the same error, it would be greatly appreciated.

[azad.Nanva]

Hi @RDAOU :

You should use similar groups, in which case the following will happen:

[RDAOU]

@rick.vandelagemaat 

Don't ask me to explain because I do not know and would rather not jinx it ... is it a bug? defenitly yes because watching @azad.Nanva video it shouldnt work on mine if it fails on yours and his! yet works on mine...

Considering they have figured it out in the test version, a hotfix will be issued soon

[benhagerman]

It appears that Global Parameters nested into system families (specifically view titles) are also broken in 2025. Before I go and create workarounds or new versions of these families, it would be nice to know if this is being reviewed for a solution. Any Updates?

[rick.vandelagemaat]

Little update from my side. While testing the newly released Revit 2026, the bug was still there.

Changing global parameters used by multiple group instances of the same type will still result in a fix groups error...

@azad.Nanva  earlier you confirmed that in a pre-release of 2026 the bug was fixed. Would you be so kind to test it again with the release to see if anything changed? Thanks in advance!

[azad.Nanva]

No, it's not fixed,the problem is still there. it is really weird,in pre release worked great.

 

[RDAOU]

In the pre-release test it worked but in the releaed public version of 2026 its not working...Must be something with the download/installation files because it still works my 2025.4 

You should Upvote this post and post a bug on the feedback hub

[azad.Nanva]

all of them is the same group (Group 1)?

[Aryen_Jacobs]

I am running into the exact same issue.... Anyone find a fix for it yet? If not i have to go back to Revit 2024.. Without this feature Revit becomes useless to us.

It occured to me that this also happens with copy pasting elements to different levels. And when duplicating familys that have Global parameters attached. This seems to me to be a pretty big issue. 

[rick.vandelagemaat]

@Aryen_Jacobs I reported this to autodesk directly as well and had a call with support this morning.

In short, this is the reaction: 

Thanks for reporting this. It has been reproduced in the latest Revit build & is now under investigation. (Logged as issues REVIT-235288 in case you need to checkstatus in future).

Fingers crossed they get a hotfix quickly. Currently there's no workaround I'm afraid.

[arq_42]

Let's hope they fix it. We use that feature a lot!

[Bruno_SilvaPYCY3]

Hello, i have a simmilar issue.

I have some group types, and instances of diferent groups.

When i want to apply a value parameter to a door that is part off various groups, the "Fix Groups" appear as a solution to integrate the value to every door instance off diferente groups, but a lose the group instance.

[TripleM-Dev.net]

O, never use Fix Groups option, you will most likely end up with duplicates of the groups, excluded elements or elements transferred from the group to the model.

Review the warning (expand button) and fix the elements registering the error.

In this case it's a Revit Bug, so to keep the groups remove the global parameter from the reported elements. (no workaround until Autodesk issues a fix)

[arq_42]

Anyone has tried if in 2026 version still exist that bug?

[rick.vandelagemaat · Accepted solution]

I've followed up in this thread 7th of april, explaining that it's not working in 2026. There hasn't been an update since where this issue was adressed.

In de mean time, support did send me this a week ago:

"Hello Rick,

This message is a follow-up to your Support Request 24181395, I’m reaching out to report a persistent issue regarding Global Parameters breaking groups in Revit 2025 and 2026. When a global parameter is associated with an element inside a model group (e.g., a wall), modifying the value of that parameter causes Revit to prompt the well-known “Fix Groups…” error, indicating that the group has been broken. This issue was first noticed in Revit 2025 and, despite forum discussions suggesting a fix in Revit 2026, the problem still persists in the latest release. For more info, please check this forum post: https://forums.autodesk.com/t5/revit-architecture-forum/global-parameters-broken-with-groups-in-revi...

An update will soon be published in this related article:

Global Parameter association is lost after copying element in Revit

The new information will appear in the article's Status section within an hour. The article is current if it shows today’s date.

If you would like additional assistance, please contact us.

Kind regards,

Autodesk"

However, while the article claims this can be fixed by copy-pasting an element using the same global parameters within the selection of the group you try to copy, should be a temporary workaround, it didn't work for us.

Until an update that fixes the issue we won't be using Revit 2025 en Revit 2026.

[rick.vandelagemaat · Accepted solution]

Well, speaking of the devil.
Autodesk pushed an update for Revit 2026 yesterday: update 2026.1. 

With one of the notes being: "Copy-Cut-PasteFixed an issue to keep the associated global parameters when using copy/paste."

I tested this version and can confirm Global Parameters stay attached to their parameters when grouped and copied. There's no error message anymore.

For now, this has been fixed for 2026. We're still waiting for an update for 2025.

I was hoping the update would also fix the issue for 2025, in case the two version were sharing libraries, however that doesn't seem the case.

[TripleM-Dev.net]

Description update doesn't sound hopefull.

But, now if you have a grouptype placed multiple times and you change a global parameter value that's associated with a wall top offset for instance, you no longer get the Fix Groups message and all those walls height change or is this still happening?