As standard our e-learning is set to open in New Window (Simple) i.e. open in a new tab. However we have seen cases of users failing the first attempt and Totara not recognising second attempts. I have logged in as users myself and completion has not registered on second or third attempts.
I changed the settings on the course temporarily to open the course in a New Window instead and logged in as the user to relaunch the eLearning. I completed the eLearning myself and it logged the completion properly.
Unsure as to why opening an eLearning course in a new tab/window would affect completion when I haven't changed the completion requirements in the SCORM settings. Any input would be appreciated.