Error message: Maximum Recursion exhausted even with OPTION( MAXRECURSION 0) - sql

Question

I'm creating a function that will have as input a start date and a number of minutes. The function will add the number of minutes to the start date and it will output an end date, but only considering work hours and excluding weekends and holidays.
You can see part of the function below.
ALTER FUNCTION [dbo].[DataFimPrevisto] (#tempoPrevisto real, #DataIni datetime)
RETURNS datetime
WITH EXECUTE AS CALLER
AS
BEGIN
DECLARE #DataFim datetime;
DECLARE #calculo TABLE( xend datetime, [minutes] int);
WITH
drange (date_start, date_end) AS
(
SELECT
CAST(#DataIni AS DATE) AS date_start,
CAST(DATEADD( YEAR, 1, #DataIni) AS DATE) AS date_end
),
dates0 (adate, date_end) AS
(
SELECT date_start, date_end FROM drange
UNION ALL
SELECT DATEADD(day, 1, adate), date_end FROM dates0 WHERE adate < date_end
),
dates (adate) AS
(
SELECT adate FROM dates0
WHERE DATEPART(dw , adate) NOT IN ('1', '7') AND NOT EXISTS( SELECT 1 FROM BAS_PeriodosExcecoes B WHERE B.Trabalhavel = 0 AND B.DataInicio = adate)
),
hours (hour_start, hour_end) AS
(
SELECT 8.5*60, 12.5*60
UNION
SELECT 13.5*60, 18*60
),
hours_friday (hour_start, hour_end) AS
(
SELECT 8*60, 14*60
),
datehours (xstart, xend) AS
(
SELECT *
FROM
(
SELECT
DATEADD(minute, hour_start, CAST(adate AS datetime)) xstart,
DATEADD(minute, hour_end , CAST(adate AS datetime)) xend
FROM dates AS d, hours AS h
WHERE DATEPART(dw , adate) <> '6'
UNION
SELECT T2.xstart, T2.xend
FROM
(
SELECT *, ROW_NUMBER() OVER(PARTITION BY T.xstart ORDER BY T.xend ASC) AS rank
FROM
(
SELECT
#DataIni xstart,
DATEADD(minute, hour_end, CAST(adate AS datetime)) xend
FROM dates AS d, hours AS h
WHERE adate = CAST( #DataIni AS DATE) AND DATEADD(minute, hour_end, CAST(adate AS datetime)) > #DataIni AND DATEPART(dw , adate) <> '6'
) T
) T2
WHERE T2.rank = 1
UNION
SELECT
DATEADD(minute, hour_start, CAST(adate AS datetime)) xstart,
DATEADD(minute, hour_end , CAST(adate AS datetime)) xend
FROM dates AS d, hours_friday AS h
WHERE DATEPART(dw , adate) = '6'
UNION
SELECT T2.xstart, T2.xend
FROM
(
SELECT *, ROW_NUMBER() OVER(PARTITION BY T.xstart ORDER BY T.xend ASC) AS rank
FROM
(
SELECT
#DataIni xstart,
DATEADD(minute, hour_end, CAST(adate AS datetime)) xend
FROM dates AS d, hours_friday AS h
WHERE adate = CAST( #DataIni AS DATE) AND DATEADD(minute, hour_end, CAST(adate AS datetime)) > #DataIni AND DATEPART(dw , adate) = '6'
) T
) T2
WHERE T2.rank = 1
) T3 WHERE T3.xstart >= #DataIni
),
cumulative (xend, [minutes]) AS
(
SELECT t.xend, SUM(DATEDIFF(MINUTE, xstart, xend)) OVER (ORDER BY xstart) AS [minutes]
FROM datehours AS t
)
INSERT INTO #calculo
SELECT TOP 1 xend, [minutes]
FROM cumulative
WHERE [minutes] >= #tempoPrevisto
ORDER BY cumulative.xend ASC;
SET #DataFim = (SELECT DATEADD( MINUTE, #tempoPrevisto - MAX([minutes]), MAX( [xend])) FROM #calculo);
RETURN(#DataFim);
END;
When I execute this function with
SELECT dbo.DataFimPrevisto( 21240, DATETIMEFROMPARTS( 2023, 1, 25, 6, 0, 0, 0)) OPTION(MAXRECURSION 0);
SSMS returns the error message
The maximum recursion 100 has been exhausted before statement completion
Even tho I'm using OPTION(MAXRECURSION 0).