Show all items in X axis

[AlB]

Hi all,

I have a line and clustered column chart with week number in the x axis. I've added new data in the last refresh and, although all the data is shown correctly, the x-axis is now showing only the even numbers. How can I force all of the week numbers to be shown? In the screen capture below, the top one is what is happening and the bottom one what I would want (consider only the x-axis, ignore the different data in both charts).

Many thanks

The bottom one is what i'm after