Edge Browser: Missing toolbars when "Top Toolbar" not selected

[kathrynwp]

In the Edge browser on Windows, blocks are missing the formatting toolbar, as well as the up/down arrows and drag-and-drop handle.

To reproduce

1. Use Edge browser on Windows
2. Open a page or post in the block editor
3. Select a block
4. Note the missing toolbars and up/down arrows:

5. Click the vertical ellipsis at the top right and select "Top Toolbar"
6. The toolbars and up/down arrows appear at the top, as expected

Expected behavior
When "Top toolbar" is not selected, the toolbar should appear directly above the block, and up/down/drag-and-drop handles should appear to the left of the block.

Desktop (please complete the following information):

• Replicated on Microsoft Edge 44.19041.1.0 / Windows 10 Pro - Build 19041.113 / WordPress 5.3.2 on WordPress.com
• Reported by several WordPress.com users with Microsoft Edge 44

Additional context

• Gutenberg 7.3.0 on WordPress.com. (Not able to replicate on self-hosted WP)

[mkaz]

I tested on 5.4 beta 3 and the issue does not appear.

It looks related to the Gutenberg plugin, I also had issues running the latest released plugin on Edge.

[jasmussen]

Can confirm I'm seeing some issues with Classic Edge and running the plugin, furthermore seeing this error in the console that's possibly related:

Note that this is not an issue in IE11, nor is it in the modern Edge that is rolling out and will replace classic edge.

[zdenys]

Cross-linking the previously reported one here Automattic/wp-calypso#39072 just in case this one needs to be closed. In Gutenberg, it was fixed already #19979.

[jorgefilipecosta]

I verified the bug is fixed on WordPress 5.4.