Power BI service mixing data in report view??

[heathernicole]

Not sure how else to ask this question:

I have two separate computers, 2 separate databases - 2 separate sets of reports. 

I've uploaded the reports (from both computers) to the Power BI service. 

However in one of the report views - it mixed data from BOTH databases... which makes no sense because everything is separated. How is this possible?? ANY ideas or leads will be  helpful - thank you!!