[DYN-8952] Fix custom group styles duplicating issue on host environments. #16558
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(cherry picked from commit b711e1a)
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See the ticket for this pull request: https://jira.autodesk.com/browse/DYN-8952
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Pull Request Overview
This PR fixes a bug where custom group styles were being duplicated in Dynamo when reopened in host environments like Revit. The issue occurred because the styles remained in memory after Dynamo was closed, and when the PreferencesViewModel was reinitialized, the custom styles were added again on top of the existing ones.
zeusongit
approved these changes
Oct 1, 2025
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Purpose
Related to https://jira.autodesk.com/browse/DYN-8952.
This should fix the custom group styles duplicating in the Revit environment when Dynamo is reopened. When dynamo is closed in host environment, the styles are still in memory and when preferencesVM is initialized, they are added again.
Tested it on Revit and sandbox with these changes.
Declarations
Check these if you believe they are true
Release Notes
[DYN-8952] Fix custom group styles duplicating issue on host environments.
Reviewers
@DynamoDS/eidos