At the moment it is only possible to have one node in backward in the repeat with activity diagrams. Is it possible to add as feature to have multiple backward nodes?
The example below shows the current situation: the second backward overwrites the first one.
repeat :send request;
repeat while (error?) is (try again)
This question has been asked earlier, but as a question and not a feature request: https://forum.plantuml.net/15276/how-to-add-multiple-backward-nodes-in-an-activity-diagram
The feature was also part of a conversation in this post: https://forum.plantuml.net/5826/please-provide-action-repeat-loop-start-instead-condition