From time to time, I’m receiving this error message when entering the UI Builder codeless editor:

After pressing “OK”, in the editor, I see one or multiple red blocks:

I can delete these blocks and continue as usual without issues. I have no idea how to reproduce this. Just want to let you know …
Regards,
Hello @Klaas_Klever!
Thank you for contacting us!
One of the reasons for such blocks can be, for example, when we use a FormData
context block in one of the Form
component logics and then put it out of scope of that form.
In your case, it’s likely that this logic was created a long time ago and that’s why no information about the block is displayed.
But with the new logic in such cases you will have full information like in my screenshots:
Regards,
Alexander
Hi @Alexander_Pavelko ,
This might be the reason.
What I’m often doing is to copy/paste blocks from one event handler to another. Also, between different Container or Blocks with “dynamic list behavior”. And yes, I recognized that since some time, you are doing some checks whether context blocks are still valid in the new event handler. What you are doing is, that after pasting, you are removing the invalid context blocks. Which is good, because I can replace them by the new, appropriate context blocks.
Reading your response above, it seems that you are somehow not really removing these invalid context blocks which enter the handling due to pasting. They somehow seem to appear again when opening the codeless logic again …
Just a theory …
Regards,