Hi ios man,
Greetings from Syncfusion.
We have checked your reported problem by binding the SfCircularGauge EndValue of scale in a sample and changed the binded property, but we were unable to reproduce the reported problem. Please find the tested sample from below link.
Sample Link:
Output:
So, could you please check the issue with the attached sample and let us know whether it is reproduced or not? If the issue was not reproduced in this sample, please revert us by modifying the sample based on your application along with replication procedure or provide the sample. This will be helpful for us to investigate further to provide better solution on this.
Regards,
Ramya S