diff --git a/BUGs b/BUGs
index bdfc0d8..74121b3 100644
--- a/BUGs
+++ b/BUGs
@@ -1,4 +1,4 @@
-#### BUGS (next-33)
+#### BUGS (next-34)
 
 BUG-7:		if you remove a series from a book, it won't appear in the series drop-down if it is the first 'missing' book in that series -- either reset the list, or show all series always?
 
@@ -12,10 +12,3 @@ BUG-31:     series does not have 'series_num', so a book in 2 series, means he o
             outer has explicity overall ordering of books in both series, so
             should be ok?
 
-BUG-33:     adding diamond throne to sparhawk novels -> I think I'm readding bsl links -> official error:
-                book(671) is Elenium (parent_book), series(49) is Elenium series...
-                DETAIL:  Key (book_id, series_id)=(671, 49) already exists.
-
-                [SQL: INSERT INTO book_series_link (book_id, series_id, book_num) VALUES (%(book_id__0)s, %(series_id__0)s, %(book_num__0)s), (%(book_id__1)s, %(series_id__1)s, %(book_num__1)s), (%(book_id__2)s, %(series_id__2)s, %(book_num__2)s), (%(book_id__3)s, %(series_id__3)s, %(book_num__3)s)]
-                [parameters: {'book_id__0': 671, 'book_num__0': None, 'series_id__0': '141', 'book_id__1': '672', 'book_num__1': '1', 'series_id__1': '141', 'book_id__2': 671, 'book_num__2': None, 'series_id__2': '49', 'book_id__3': '672', 'book_num__3': '1', 'series_id__3': '49'}]
-
diff --git a/main.py b/main.py
index 5d64682..b18f158 100644
--- a/main.py
+++ b/main.py
@@ -21,7 +21,9 @@ app = Flask(__name__)
 # local DB conn string
 if os.environ['FLASK_ENV'] == "production":
     DB_URL = 'postgresql+psycopg2://ddp:blahdeblah@bookdb:5432/library'
+    app.config['FLASK_ENV']="production"
 elif os.environ['FLASK_ENV'] == "container":
+    app.config['FLASK_ENV']="dev"
     DB_URL = 'postgresql+psycopg2://ddp:blahdeblah@bookdb_dev:5432/library'
 else:
     DB_URL = 'postgresql+psycopg2://ddp:blahdeblah@127.0.0.1:55432/library'
@@ -661,8 +663,7 @@ def new_book():
 
 
 def ClearAuthorsForBook(id):
-    with db.engine.connect() as conn:
-        res = conn.exec_driver_sql( f"delete from book_author_link where book_id = {id}" )
+    bals=Book_Author_Link.query.filter(Book_Author_Link.book_id == id).delete()
     db.session.commit()
 
 # helper function to reduce code size for /book/<id>/ route - handles deleting book
@@ -778,11 +779,14 @@ def book(id):
                 # either we are a normal book (no parent/child), OR not removing a series, might be adding though, so easiest is to
                 # delete all bsls and then add them back based on the request.form
                 Book_Series_Link.query.filter(Book_Series_Link.book_id == book.id ).delete()
+                if book.IsChild():
+                    Book_Series_Link.query.filter(Book_Series_Link.book_id == book.parent[0].id ).delete()
 
                 cnt=1
                 for field in request.form:
                     if 'bsl-book_id-' in field and field != 'bsl-book_id-NUM':
                         cnt=int(re.findall( '\d+', field )[0])
+                        print( f"here: field={field}, cnt={cnt}" )
                         if book.IsParent():
                             newbsl=Book_Series_Link( book_id=request.form[f'bsl-book_id-{cnt}'],
                                 series_id=request.form[f'bsl-series_id-{cnt}'] )
@@ -792,6 +796,7 @@ def book(id):
                                 book_num=request.form[f'bsl-book_num-{cnt}'] )
                             # add the contains (null for book_num) bsl for the parent book
                             if book.IsChild():
+                                print( f"FINAL: pid={book.parent[0].id}, sid={request.form[f'bsl-series_id-{cnt}']}" )
                                 parent_bsl=Book_Series_Link( book_id=book.parent[0].id, series_id=request.form[f'bsl-series_id-{cnt}'] )
                                 db.session.add(parent_bsl)
                         db.session.add(newbsl)