Hi Iker1234,
ITMS 7.5 SP1 is already released and contains IT Analytics 7.5 SP1 (7.5.2020) (If it is exact release
I've successfully upgraded ITMS 7.5 HF6 to ITMS 7.5 SP1 with ITA but seems like sometimes such problem could appear for ITA reports (Probably this will be useful if you will perform same upgrade https://www-secure.symantec.com/connect/forums/it-analytics-error-reports-after-sp1-upgrade )
About own cubes in SSAS:
I see that at least manually builded databases is correctly determined by ITA in SMP Console but I see that it doesn't show my cube and shows only default ITA cubes. Probably I've incorecctly created this cube :)
Will be better to ask about own cubes in SASS for ITA usage, directly from Bay Dynamics.
Thanks,
IP.