'updating relation data for controller' project not downloading ful - 800xA upgrade from 4.1 to 6.1 system - PM864
We are upgrading 800xA system from 4. 1 to 6.1 system with PM864 controllers, after the upgradation for one controller while downloading the project it's waiting at 'updating relation data for controller Controller_4 ' project not downloading fully. power recycle & initialization done at hardware level, any other things needs to be check please suggest. screenshot is attached.