In this example there is one table b with one field y
The field y in table b cannot be erased. The error message states y is in use by privilige set TST which is not true.
There only workaround is to erase privilige set TST.
Here is how to reproduce the error:
Produce a new fmp12 file in fmp14
Create table a with the textfield x and table b with field y, make y a globally stored text field
Create the privilige set TST in such a way that creating a record in table a requires that the field b::y is set to "yes"
Now, goto Define database and delete table a.
Try to erase b::y
This error goes back all the way to FM11 and haven´t been fixed for FM14.