Deco changed sidebar regions names from sidebar_(right|left) to sidebar_(first|second).
But no upgrade-path was provided: after a D7 upgrade blocks regions assignations are lost upgrade itself throws warning. See #1172560: The block X was assigned to the invalid region Y and has been disabled.

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drzraf’s picture

drzraf commented

workaround, before D7-upgrade (this touch D6 {blocks} table):

UPDATE blocks SET region = 'sidebar_first' where region = 'sidebar_left' and theme = 'deco';
UPDATE blocks SET region = 'sidebar_second' where region = 'sidebar_right' and theme = 'deco';
drzraf’s picture

drzraf commented
Issue summary: View changes

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