Planner will not load

**Describe the bug**
Running version 3.6.0 and when trying to load the Planner Tool, the page refuses to load.
If you force a refresh the page loads and a circle spins in the Virtual Network box and then crashes out.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to Hamburger menu at top left
2. Click on Hamburger menu
3. Expand Tools
4. Click on Planner
5. See blank page
6. Click on refresh of browser
7. See page try to load
8. Blank screen

**Expected behavior**
Clicking on Planner should launch the Planner tool and show me details of my VNets and Subnets

**Screenshots**
Video attached.

https://github.com/user-attachments/assets/0d7f8565-0233-4012-a845-2aaaf79cbccc

**Desktop (please complete the following information):**
- OS: Windows 11 24H2 (26100.6584)
- Browser: Microsoft Edge
- Version: 140.0.3485.94 (Official build) (64-bit)

**Additional context**
Add any other context about the problem here.