Version: Windchill 13.1 Use Case: Windchill 13.1.2.0—Intermittent UI Unresponsive / Freezing After UpgradeDescription: Hello everyone,We recently upgraded our Windchill system from WC 12.0.2 to WC 13.1.2.0. Since the upgrade, we have experienced intermittent UI unresponsiveness/freezing issues.While working in Windchill, the UI occasionally becomes unresponsive.The browser shows “Page is not responding”.After a few minutes, the UI resumes and returns to normal on its own.In some cases, the UI remains unresponsive and we need to restart Windchill services as a temporary workaroundOccurs on both Chrome and Edge (latest supported versions).Happens for multiple users, not limited to a single client machine.Steps We’ve Tried:Cleared browser cache / tried Incognito modeHas anyone else experienced intermittent UI freezing issues after upgrading to WC 13.1.2.0?Are there any known SPR/CPS fixes related to UI responsiveness?What additional troubleshooting steps or configurations should we check?Any recommended tuning or patch suggestions for better UI stability?

B

BJ_8933016

4-Participant

Question

Windchill 13.1.2.0 — Intermittent UI Unresponsive / Freezing After Upgrade

Forum|Forum|1 month ago
February 19, 2026
4 replies
58 views

Version: Windchill 13.1

Use Case: Windchill 13.1.2.0—Intermittent UI Unresponsive / Freezing After Upgrade

Description:

Hello everyone,

We recently upgraded our Windchill system from WC 12.0.2 to WC 13.1.2.0. Since the upgrade, we have experienced intermittent UI unresponsiveness/freezing issues.

While working in Windchill, the UI occasionally becomes unresponsive.
The browser shows “Page is not responding”.
After a few minutes, the UI resumes and returns to normal on its own.
In some cases, the UI remains unresponsive and we need to restart Windchill services as a temporary workaround

Occurs on both Chrome and Edge (latest supported versions).
Happens for multiple users, not limited to a single client machine.

Steps We’ve Tried:

Cleared browser cache / tried Incognito mode

Has anyone else experienced intermittent UI freezing issues after upgrading to WC 13.1.2.0?
Are there any known SPR/CPS fixes related to UI responsiveness?
What additional troubleshooting steps or configurations should we check?
Any recommended tuning or patch suggestions for better UI stability?

Upgrade_Migration

T

TDT

16-Pearl

Hi @BJ_8933016,

Is there anything relevant in the Method Server logs?

Does this issue occur for a single user or for all users simultaneously?

Have you checked whether this could be related to memory utilization?

avillanueva

23-Emerald I

Recommend starting here:

[Knowledge Hub] Windchill PLM - Performance Optimization and Troubleshooting

Windchill Performance Tuning Guide

https://www.ptc.com/en/support/article/CS153338?source=search

You should also watch the DB for long running transactions and ensure its properly tuned and statistics run. You need to determine if the delay is on the app side or the database.

R

rhart

16-Pearl

You could check if there is a custom table view active, change the view back to system default, recreate any view that reproduces the issue

B

BryanK

16-Pearl

Hi,

Have you looked at the Apache logs?

Is there anything in the Operating systems Event Viewer?

Have a look at the Avg Disk Queue Length..