@Sebastian_Fruchtzwe1
Thank you for the details.
I understood that you want to create a draft to reply to a Gmail thread.
I don’t know why it worked in the past, but it seems that you would originally need to specify the thread ID, etc.
However, there is no such configuration item in the Create a draft module, so I think you need to use Gmail’s “Make an API call” Module to specify the parameters.
I found a past post with similar information, so please refer to it. It is possible that this information may be out of date.
Although it is not related to the question, it might be helpful if you could add a Mention so that the respondent will be notified as well!