Seen only one time: https://wmf.ci.cloudbees.com/job/Flow-en.wikipedia.beta.wmflabs.org-linux-chrome/465/
As a logged-in user, create a new topic in Flow. Topic was saved as anonymous, even though user logged in successfully and test showed no sign of user logging out.
I want to note this because of the similarity to an intermittent issue when switching edit modes in VisualEditor, bug 65709
Version: unspecified
Severity: minor
See Also:
T67709: In automated browser tests, browser loses token or logs out when switching from VE to wikitext edit mode, and various other failures