Error during training: probably related to loading / saving jason files

[Addalin]

Trial Runner checkpointing failed: [WinError 5] Access is denied: 'C:\\Users\\addalin\\Dropbox\\Lidar\\lidar_learning\\results\\main_2021-05-06_19-17-01\\.tmp_generator' -> 'C:\\Users\\addalin\\Dropbox\\Lidar\\lidar_learning\\results\\main_2021-05-06_19-17-01\\basic-variant-state-2021-05-06_19-17-01.json

Also - we need to check again the issue of checkpoint naming