Enumerated line types are displayed as usual, even if they are dashed lines.

I am creating an application using WEBSDK ver1.0.
I was able to display dashed lines until now, but suddenly they are displayed as normal lines.
When I reload the application, it changes to dashed lines, but I wonder if there has been a specification change on Miro's side.
The guide says to set it to "1" to output dashed lines, but is there something else I should do?