Multiple reusable blocks issues since 5.8

[gizmo2501]

I am having multiple reusable blocks issues since 5.8:-

1. They are not displaying as designed. For example, I have a reusable block that spans the entire width of a post, but when you view the live post, it only occupies the right third of the post width. In another example, I have coloured the background, but the background is only showing as white.

2. When inserting a reusable block into a post, 2 instances of the reusable block get inserted.

[audrasjb]

Hello and thank you for opening this ticket @gizmo2501

Could you please share some more specific steps to reproduce the issue? Are you using native blocks? Does it occurs with some specific plugins or are you running a fresh WordPress install? Do you reproduce the issue on bundled themes like Twenty-xxx?

Thanks