[DaltonST]

I got this the very first time I clicked the new Quickview icon within the Layout button just after upgrading to 3.3. The index was likely = None.

calibre 3.3 [64bit] embedded-python: True is64bit: True Windows-10-10.0.15063-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.15063')
Python 2.7.12+
Windows: ('10', '10.0.15063', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Find Duplicates (1, 6, 3) && Zotero Metadata Importer (1, 0, 41) && Author Book Count Hierarchy (1, 1, 8) && Audit Log (1, 0, 7) && Reading List (1, 6, 6) && Drop Search Results (1, 0, 8) && Quality Check (1, 9, 11) && Modify ePub (1, 3, 13) && Library Codes (1, 0, 30) && MultiColumnSearch (1, 0, 71) && Favourites Menu (1, 0, 4) && English Noun Frequency (1, 0, 7) && Job Spy (1, 0, 72) && View Manager (1, 4, 3) && Author Book Count (2, 1, 5) && Media File Importer (1, 0, 20) && Count Pages (1, 8, 0) && Consolidate All Library Metadata (2, 0, 32) && Extract ISBN (1, 4, 4) && QuarantineAndScrub (3, 6, 103)
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\show_quickview.py", line 32, in update_state
File "site-packages\calibre\gui2\actions\show_quickview.py", line 100, in _show_quickview
File "site-packages\calibre\gui2\dialogs\quickview.py", line 194, in __init__
File "site-packages\calibre\gui2\dialogs\quickview.py", line 362, in refresh
File "site-packages\calibre\gui2\library\models.py", line 695, in id
File "site-packages\calibre\db\view.py", line 194, in index_to_id
IndexError: tuple index out of range