Table Visual error in PowerBI Online version.

This is a wild suggestion, but is there any chance that there are very few rows in the table and your team mate needs to scroll up a lot to see the results? This situation happens to me on table matrixes when I go from seeing a lot of rows to something that only has 5-6 lines of filtered data.

If that isn't the issue, something that has been very useful in debugging is using the Filters on Visual so I can attempt to re-create the problem.