Steps to reproduce

Open a Vaadin 8 design by double clicking it

Actual behavior

It shows "Please wait, loading view" which never completes and IDE goes unresponsive. I'll have to kill the IntelliJ IDEA process.

Expected behavior

The design is opened and IDE stays responsive.

IDE, Designer and OS version

Win 11 Pro
IntelliJ IDEA 2022.3.1 (Ultimate Edition)
Build #IU-223.8214.52, built on December 20, 2022
Runtime version: 17.0.5+1-b653.23 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Vaadin Designer 4.6.20
Multi module Maven V8.15.1 project.