I looked at your code briefly. I commented out a few lines on your SwitchBoard form as below
Code:
Private Sub Form_Load()
'Hide ribbon
' DoCmd.ShowToolbar "Ribbon", acToolbarNo
' DoCmd.Maximize
'Hide navigation pane
DoCmd.SelectObject acTable, , True
'DoCmd.RunCommand acCmdWindowHide
End Sub
I took screenshots
-first (Bill) while on AFR 83115,did ctrl F and set the Find to look for 88888, and
-second (Bill2) showing the result AFR 88888.
-third (Bill3) while on AFR 88888, ctrl F to find 83733 UP/Previous
-Fourth (Bill4) result of Find in Bill3.
I don't know what causes some AFRs to NOT be found -- unless you're checking Up/Down incorrectly. I would expect All to work(since it should do the search in any.all directions). Seems to find AFRs for me, but I did not try all of your values.
Good luck with your project.