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[19.2.0.62] Weird Gantt Chart issue

Hi,

Most of our site users are reporting issues on our site pages involving the Gantt chart component.

Here's the scenario. Our web app has these two pages. We have this page containing a somewhat preview display of the Gantt chart where options are not available. There is a link on that preview Gantt chart that will redirect the user to the full view of the Gantt chart complete with taskbar options where users can create/update project tasks/events in the Gantt chart.

Now, the Gantt chart sometimes takes a few seconds to render, right? It's not an instantaneous as we want it to be which is fine. However, users are impatient. They immediately click the link to the full Gantt chart view page without waiting for the Gantt chart to render on the current page. Now when the user gets to the page with the full view of the Gantt chart, the application fires an exception with a Blazor component which familiarly looks like this.


After digging I find some details regarding why the error occured.

  1. When I checked the Event Viewer for logs, I found this:

2. When I checked the logs for the Websocket connection of our web app in the Network tab of our browser (under _blazor?id={Random ID}), I found this error message. (Log is too long to include this post so I have attached it instead.)

Hope this error helped your team in determining this issue. By the way this issue is on version 19.2.0.62 as this version is what we have seen as stable for our website. I hope there is a way where this can be resolved within version 19.2.0.62 as well. I have tried upgrading the Syncfusion library of our website to the latest one (19.4.0.50) and we immediately have breaking changes in our website. (For more details, please see my separate post on this link: https://www.syncfusion.com/forums/172706/file-manager-crashes-after-upgrading-to-19-4-0-50)

Also, I would appreciate if you promptly investigate and fix this bug as this was seen in our Production environment and users are expecting to quickly fix this issue as this affects their productivity with the website.

Many thanks!
Denzel 

Attachment: _blazor_log_184543fe.zip

3 Replies
AK Alagumeena Kalaiselvan Syncfusion Team February 9, 2022 02:50 PM UTC

Hi Denzel, 
  
Thanks for contacting Syncfusion support. 
  
Currently we are validating your reported query based on the provided details and we will update the further details by tomorrow 10th February, 2022. 
  
Regards 
Alagumeena.K 


RS Roy Sunga February 14, 2022 11:09 AM UTC

Hi,


Can I get an update on this? Thanks!


AK Alagumeena Kalaiselvan Syncfusion Team February 16, 2022 01:56 PM UTC

Hi Denzel, 

Sorry for the delayed response. 

We have checked your reported issue in version 19.2.0.62 but unfortunately we could not replicated the issue at our end. Also, we have a prepared a sample for your reference and we request to share the below details to proceed further. 
  • Share the issue replicating steps in detail
  • Replicate the issue shared sample
  • Share the issue depicting video

Note:  We suspect that issue may occur due to cache problem and we suggest to clear the Nuget/browser cache once and check your scenario again. 

Regards 
Alagumeena.K 


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