Symptoms:

• Published Google Chrome apps hang for 10-15 seconds during the initial startup phase.

• The issue is intermittent but most frequent during the first launch of a user session.

• Application UI elements (like bookmarks) may be missing or blank during the freeze.

• The issue is resolved if Citrix Profile Management service is stopped or if Profile Streaming is disabled.

Environment:

• VDA: 2507 / 2507 CU1

• OS: Windows Server 2019 / 2022

• Profile Management: Citrix UPM with Profile Streaming enabled.

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The freeze is caused by a bottleneck in the Citrix Profile Management "Profile Streaming" feature. Modern versions of Google Chrome generate a high volume of small metadata and cache files (specifically GPU and Shader caches) during startup. When Profile Streaming is active, UPM attempts to fetch these files on-demand from the user store, leading to I/O delays that hang the application process until the file operations are synchronized.

To resolve the freeze, exclude Google Chrome's high-frequency temporary and cache data from Citrix Profile Management processing:

1. File Exclusions:
Add *.tmp to the "Exclusion list - files" policy.

2. Directory Exclusions:
Add the following paths to the "Exclusion list - directories" policy:

• AppData\Local\Google\Chrome\User Data\Default\DawnWebGPUCache

• AppData\Local\Google\Chrome\User Data\Default\DawnGraphiteCache

• AppData\Local\Google\Chrome\User Data\GraphiteDawnCache

• AppData\Local\Google\Chrome\User Data\GrShaderCache

• AppData\Local\Google\Chrome\User Data\ShaderCache

• AppData\Local\Google\Chrome\User Data\Default\GPUCache

• AppData\Local\Google\Chrome\User Data\Default\Shared Dictionary\cache

• AppData\Local\Google\Chrome\User Data\Crashpad

• AppData\Local\Google\Chrome\User Data\Default\Code Cache

• AppData\Local\Google\Chrome\User Data\Default\Service Worker\CacheStorage

• AppData\Roaming\Default\GPUCache

• AppData\Roaming\Default\Service Worker\ScriptCache

3. Optional (If issue persists):
Add AppData\Roaming\Default and AppData\Local\Default to the "Profile Streaming Exclusion list – directories" policy.

Google Chrome published applications experience a temporary freeze (10-15 seconds) immediately upon launch in Citrix Virtual Apps environments. This behavior is typically observed after upgrading the VDA agent to version 2507 or later when Citrix Profile Management (UPM) Profile Streaming is enabled.

• Citrix Product Documentation: Include and exclude items in Profile Management