Spacer fails to render when height is set > 500px

[antonis]

Describe the bug
Spacer fails to render when height is set > 500px

To Reproduce
Follow the steps in test-case TC005

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone SE 2020
• OS: iOS 14.2

Additional context
The issue was reported here.

[chipsnyder]

Tested this on WP 16.7 the editor will restrict the input to be 500 px. If you change it in the code editor it will still display but will reset to 500 if you try to edit it visually again.