Deck is missing cards on every startup

Hi
Everytime I open Hearthstone, one of my decks doesn’t recognize two cards anymore. So every single time I have to go to Collection, drag the (now blue and labeled “Missing”) cards out of the deck and then the same cards back into the deck.

The two cards that need replacing every time are Overseer Frigidara (in the deck as a regular card) and Death Strike (inside E.T.C.'s band).

The copied deck:

Sindragosa

Class: Death Knight

Format: Standard

Year of the Wolf

2x (1) Body Bagger

1x (2) Astalor Bloodsworn

2x (2) Coroner

2x (2) Frost Strike

2x (2) Harbinger of Winter

2x (3) Chillfallen Baron

2x (3) Howling Blast

2x (3) Nerubian Vizier

2x (3) Rimefang Sword

2x (3) Rimescale Siren

1x (4) Blademaster Okani

1x (4) E.T.C., Band Manager

1x (4) Death Strike

1x (5) Taelan Fordring

1x (5) Zilliax

1x (4) Pozzik, Audio Engineer

2x (4) Remorseless Winter

1x (4) Thassarian

2x (6) Gnome Muncher

1x (6) Overseer Frigidara

1x (7) Frost Queen Sindragosa

1x (7) Patchwerk

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To use this deck, copy it to your clipboard and create a new deck in Hearthstone

Copy the deck, delete it, and make a new one. That or build it again manually. For the vast majority of players this works.