Articulate and SkillSoft Communication Issue

I have a course created in Articulate Presenter. It has an assessment in which the user must score at least an 80% to be considered complete in the SkillSoft LMS. Over 7,000 of our employees have not had an issue posting a passing score but now we have a select number of users (between 10-15) who either cannot post a score (LMS registers course as opened, shows amount of time in the course) but does not show a score. The score shows up as a dash (-).

SkillSoft says it's a problem with the course, based on a Java log (decoded below) pulled from one user. The user received an 80%, however, the LMS reports it as 50%.

function=commit
session_id=e5009110-YHYP1UYE7-_scorm12_sppublps_erm_0412-_scorm12_sppublps_erm_0412-@0-SPCSF
version=80
cmi.core.lesson_location=
cmi.core.score.min=0
cmi.suspend_data=viewed=1,2,3,4,5,6,7||lastviewedslide=7||2#3##,6,23,19,19,19,19,11,1,0,1,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,1,1,1,1,0#0,0,0,0,0,0#6a2d8133-d980-46c8-a754-406ba5c7e143=199321110011~3150~23211000010101010101010101010010011112102102100018310009completed~236cdd89238-a0bf-464b-9d2a-9379ca03964e09completed~210incomplete0000002107correct11~28400000000000~269~2281c11~22093$~$4$~$52101c46068~233200400114001140011200200200200200~240~234514043~21600100000100000002114499900,#-1
cmi.core.score.max=100
cmi.student_data._children=mastery_score
cmi.core.credit=credit
cmi._children=core,student_data,suspend_data,launch_data
cmi.core.score._children=raw,min,max
cmi.core.lesson_status=incomplete
cmi.core.session_time=0000:04:12.54
cmi.student_data.mastery_score=80.0
cmi.core._children=student_id,student_name,lesson_location,credit,lesson_status,entry,score,total_time,exit,session_time
cmi.core.student_id=e5009110
cmi.core.student_name=Cook, Suzanne
ss.score_was_set=true
ss.timestamp=1338479693191
cmi._version=3.4
cmi.core.entry=resume
ss.protocol=80
cmi.core.total_time=01:31:50.75
cmi.launch_data=
cmi.core.exit=suspend
cmi.core.score.raw=50

My response to them was, how did over 7,000 people post a good score and 10-15 can't and it's the courses fault? Does nayone else have any good ammuntion to use against this sort of problem?