I see, that is really weird. If you have data for the other months, it should for sure show them.
I assume you are using a standard date dimension out of the box, right? And you did not upload any
custom calendar that could possibly assign days to different months, right? (that could potentially cause something this, but I do not assume anyone would do that).
So I would recommend to check these things:
• does this behave the same in other visualizations (i.e. column chart and table)?
• if you have more date dimensions in your LDM, check that you have the correct one by which you want to break the data by selected in the “Date As” dropdown