prevent yikes in settings._read_slot when loading settings

releases/ChangeLog.md

@@ -8,6 +8,7 @@
   deferring card read (and decryption) until after `Restore Saved` menu item is selected.
 - Enhancement: `12 Words` menu option preferred on the top of the menu in all the seed menus
   (rather than 24 words).
+- Bugfix: Handle any failures in slot reading when loading settings
 
 ## 5.2.0 - 2023-10-10
 

shared/nvstore.py

@@ -332,9 +332,8 @@ class SettingsObject:
                 continue
 
             # probably good, read it
-            aes = aes.cipher
-            json_data, expect, actual = self._read_slot(pos, aes)
             try:
+                json_data, expect, actual = self._read_slot(pos, aes.cipher)
                 # verify checksum in last 32 bytes
                 assert expect == actual