I have created a rule that when the issue type is 'Marketing Task' and it's epic doesn't contain 'marketing-board' label then add this label. Audit log shows that the particular epic has been edited successfully but the label is still not visible neither it shows in the history of a particular epic.
Same rule works without any problem if I use 'SET' instead of 'ADDREMOVE' for editing the epic.
Here are the snapshots of my rule and audit log, any help would be much appreciated.

