SN74LVC1G08: Enquiry for stain found on part SN74LVC1G08DRLR (SO#238837)

Part Number: SN74LVC1G08

Tool/software:

Hi, 

Customer would like to enquire on the stain found on the leads for part SN74LVC1G08DRLR.(see photo)

Please help to verify and advise whether this is considered reject.

Thanks

Regards