According to Official Guinness Records,
The most coupe glasses stacked with a forklift is 16 and was achieved by An Liqiang (China) on the set of CCTV - Guinness World Records Special in Beijing, China on 9 January 2016.An Liqiang took almost 1 hour in order to complete his attempt.
For a complete list of 2016 records, please visit 2016 Guinness Records in China.