I am having trouble trying to filter a Power Apps Gallery based on a combo box. The gallery pulls from a data set that has a column labeled Hospital(s) in use and the combo box pulls from a list that has those same hospitals. Below is the code I tried however I am getting an error Invalid Argument Type (Table). Expecting a text value instead.

Filter(
'Application List',
If(
IsBlank(ComboBox1.Selected.Title),
true,
ComboBox1.Selected.Title in Split('Application List'.'Hospital(s) in use', ";")
)
)
My main gallery is called Application List and the List that the combo box pulls from is called Hospitals, and I am trying to compare the selected value(s) from the combo box with the value in the column on my sharepoint list called Hospital(s) in use which is a multi-select column.