Hello I really hope you can help!
Here is my problem:
I add my first flexible content field.
Then I add my first layout. – works great.
Then add a second layout to this flexible content field, but every time I add a subfield to the second layout it add this to the first layout despite clicking on the second one.
Please help!
I’m having the same problem. Any secondary layouts’ sub-fields are added to the first layout group. No sub-layouts can be created.
I just tested this and it seems to be working correctly for me. Can you give more details on the steps that cause this to happen.
+ one for this issue! Will post an image shortly!

“Source” when added goes into the first set of fields not the second?
Updated to 5.72 and all seems ok! WordPress was telling me plugin was up to date when it wasn’t!