validation failed : absence of pred_instances and gt_instances

[ImaneTopo]

@thangvubk I tried training the model from the scratch on the S3DIS dataset, the traning was done, but in the validation phase, I face an erreor because the dict res were imcomplete due to the absence of pred_instances and gt_instances.

[zyj360507603]

me too,I'm having the same issue