Display zero for rows and Columns with no data in a matrix

Dears, we use  a 4 X 4 matrix to report number of incidents per 2 impact dimensions ( figure 1)

the data set key data points are below,  this is easy to achieved using a matrix in Power BI,

 However there are times that the filtered dataset does not contain one of the expected Impact types, ( either column or Rows)  when that’s the case, our matrix , will display as in Figure 2  , where what we want to achieve is the Figure 3

Could you recommend any approach to sort this out ? Any alternative or suggestion would be greatly appreciated.