This module provides a configuration, stored temporary on layout_settings at form_state, but it is the same form_state storage key used by other modules like bootstrap_layouts or varbase_layout_builder.
As consequence, when layout_builder_ids is used together with one of those modules, the section id is not saved properly.
Store the form_state in a key different from layout_settings. For example, can be used directly layout_builder_id (in level array)
Review and test
None
None
layout_builder_id is saved on the first level of the form_state storage array.
Needs work
2.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Sorry I have not been able to look at this in awhile but I am finally getting back to it. I agree that some of these changes can be made, if someone would like to a crack at again using all the latest 2.0.x, then I will have a look too. I think it it is going to need an update hook for any existing ids for sections and blocks.