Captivate 9 percentages reported do not always match score and pass/fail status is being reported incorrectly

We have just discovered that all our courses have been sending inconsistent scores/percentages and pass/fail data to our LMS.

I have tested one of the courses in SCORM cloud and it reported the correct  percentage and pass/fail status.

I have also tested a few of the courses in our LMS's SCORM analyser and observed the correct points being allocated per question, correct score and percentage at the end of the module and correct pass/fail status.

The problem is- the behaviour is inconsistent and therefore difficult to test.

We have run a report from the LMS that shows some instances where two users have gotten the same percentage score, but one has failed and one has passed.

It would appear that this information is coming from captivate, as the pass/fail status and score displayed in the LMS matches those displayed when analysing the user's attempts (see screenshots below)

The following screenshots are from a course with a pass ark set as 85%. Four users have achieved a successful result and one an unsuccessful result, despite all reportedly achieving 80%. Upon closer inspection of the score being passed back to the LMS, the percentages are wrong.

User 1 achieved 46/50 = 92% (should have passed and did, but % recorded less than % achieved)

User 2 achieved 38/50 = 76% (should have failed, but was successful - % reported higher than % achieved)

User 3 achieved 46/50 = 92%(should have passed and did, but % recorded less than % achieved)

User 4 achieved 42/40 = 84% (should have failed, and did - % reported less than % achieved)

Report from LMS

Line 1 Data:

Line 2 Data:

Line 3 data:

Line 4 data:

If anyone could shed any light, that would be really helpful. My publish settings are as follows: