Lookup doesn't find value

Summary:

We have an integration, where we are using a lookup mapper. In this mapper there is a column called 'Combined_Statusses', which is equal to the statusses of two other values concatenated to each other.

So in the integration i concatenate the two values and assign that to a variable called CombinedStatusses:

That variable is returning the correct value as it is also in the lookup.

However, when i try to get the corresponding column according to the Combined_Statusses column, it always return the Default value:

What am i doing wrong here?

Thanks