Model is in training for 1d and not able to start other model training

Thanks for sharing the screenshot. Running one training/retraining job at a time can be expected behavior, but a job remaining in Training for about 24+ hours is not typical.

We are treating this as a potential backend service issue and escalating it to engineering for investigation. Please also share workspace/environment ID, region, model name, and approximate UTC time when retraining was started so we can speed up trace lookup.