A matching block grid configuration could not be found, When inside a Narrow Container

[BenEquate]

Which Umbraco.Community.BlockPreview version are you using?

4.0.3

Which Umbraco version are you using? For example: 10.4.0 - don't just write v10

16.0.0

Bug summary

For some reason, no matter what i try and do, i can't get this preview to work at all - Its a Block with a RTE inside.
The narrow container has two areas, one that is 1x3 and another that is 1x9.

The alias of this block is legalRte which is defined in my appsettings.json the same as all the other blocks (That are working fine).

The error messages in console are:
invariant:1 Uncaught (in promise) Context could not be found. (Context Alias: UmbWorkspaceContext with API Alias: default). Controller is hosted on #document-fragment > BLOCK-GRID-PREVIEW

Steps to reproduce

Create a "Narrow Container" and inside set a grid
Then create a text page with a grid property
Inside that grid property, set the areas for both RTE and left-navigation as 1x3 & 1x9
The RTE should say A matching block grid configuration could not be found

Expected result / actual result

No response

[rickbutterfield]

Hey @BenEquate! Please can you share the following information (screenshots ideally!)

• The data type configuration for your Narrow Container's Grid property
• The Block config for the RTE block you're trying to add
• The configuration for the Area you are trying to drop this block into

Here are examples so you know what you're specifically looking for

Data type:

Block config:

Area config:

You will be able to get to all of these screens from the data type configuration

[BenEquate]

Although i have only changed the row span on the section block (As i saw it was incorrect) the other block inside my container is now getting the same issue

Hopefully this helps - Thanks for getting back to me on this issue!

Maybe its just me configuring the block wrong? - Not entirely sure!