If a symbol contains text (not the attributes) then if it is placed with orientation other than the default the text may not be in the expected position relative to the outline and pins.
Example schematic attached generated using v2.70.00a #173.
The symbol shown is for illustration only.
Phil
Symbol text position error example
I have just come across a bug that manifests itself as label movement when parts are mirrored which is the same as the bug listed here.