MS ACCESS wont read Form Variables as query parameters

I use form variables as parameters in my queries.  I have been doing this for 25 years in Access.  Recently I have noticed that some of my queries are showing null values for form variables that are present on the form and I can see there is content in them. I can even see data in the immediate window when I reference the form fields in question, but doesn't work anymore in the query.

What would be the reason that referencing a form variables in a query would not work (would not retain the data in the parameter that references a form variable)?

EX:

SELECT tblLoanTypes.LoanTypeCode, tblSDSTeam.ScheduledAttendancePerWeek, tblSDSTeam.StartDateThisAcademicYear, tblSDSTeam.EndDateThisAcademicYear, tblSDSTeam.AwardPeriodBeginDate, tblSDSTeam.AwardPeriodEndDate, tblSDSTeam.NumPaymentPeriodsInThisAward, tblSDSTeam.StudentProgramEnrollmentId, tblSDSTeam.StudentAcademicYearId, tblSDSTeam.StudentAwardId, tblSDSTeam.ExportDate, [Forms]![frmMain]![cRecId] AS Expr1, tblSDSTeam.ScheduledAwardAmount, tblSDSTeam.ScheduledAwardAmount, "R" AS Expr2, [Forms]![frmMain]![cSeq] AS Expr3, Left(Trim([StudentId]),9) AS Expr4, tblSDSTeam.AwardYear
FROM tblSDSTeam INNER JOIN tblLoanTypes ON tblSDSTeam.AwardType = tblLoanTypes.LoanType
WHERE (((tblSDSTeam.StudentProgramEnrollmentId)=[Forms]![frmMain]![nStudentProgramEnrollmentId]) AND ((tblSDSTeam.StudentAcademicYearId)=[Forms]![frmMain]![nStudentAcademicYearId]) AND ((tblSDSTeam.StudentAwardId)=[Forms]![frmMain]![nStudentAwardId]));

The query above worked fin until a month ago.  But now all of the form variables are not making it to the query with data in them.

I compacted and repaired, re-created the tables and queries from scratch - with no luck.  Any help is appreciated.

Microsoft® Access® for Microsoft 365 MSO (Version 2408 Build 16.0.17928.20066) 64-bit

Windows 11 pro with 32 GIG Ram