Hope someone can help with this issue, as cannot find anything on this in the support field.

I am creating a new Pivot Chart where are need to use a function field to do averages, however, for some reason the given function field is being read as a multiline text? 

The function reads as below where the two first referred fields are nubmer fields and the two last referred fields are time and date fields.

 ((input.SEM_SCH01_16_TD_ID16 + input.SEM_SCH01_19_TL_ID19) / (((input.SEM_SCH01_33_ATD_ID33 - input.SEM_SCH01_32_ATA_ID32)) / (1000 * 60 * 60))).round(1)