Hello,
I have
created a new razor page in which I am using the EjsDiagram component and I am
using a NodeTemplate with a custom html. At the first loading everything is
working fine, however when I am changing menu(and navigate to a different razor
page) and then I navigate back to the page with the EjsDiagram component I
receive the message "Attempting to reconnect to the server..." and
nothing is displayed.
Please note
that when I have a single node only, this issue appears when I navigate between
the two menus multiple times (6-7 times) while when I have 6 nodes the issue appears
directly.
I have replicated the issue also with your
sample component
https://blazor.syncfusion.com/demos/Diagrams/ComplexShapes?theme=bootstrap4