Looks OK here...need enough to duplicate the issue. Have a feeling the figure you generated didn't come from the code above in its entirety...particularly since there's nothing to have generated the data it has to be only a piece.
In general when using multiple axes, save the axes handle to each figure and ensure are plotting into the desired axis. Probably (altho we can't see it here) your actual problem figure has had something else happen that changed focus so that you wrote to the other axes handle than you expected.
Execute close 3 and then only the above code and see if symptoms don't change. But still, save the handles of the two axes when you create them and then use that axis as the target for the various plotting instructions instead of default.
