There may be more themes/plugins active on your WordPress install which use TGMPA. The first version of TGMPA WordPress encounters will be used. This may not be the version included in your theme/plugin.
If you or your end-user experience bugs which have been solved in recent versions of TGMPA, try and find out which other theme/plugin is installed which includes TGMPA and contact the theme/plugin author and urge them to upgrade their TGMPA version.
FYI - the loading order within WordPress is as follows: