V3.5.5 training data does not working in v3.6.4

RASA v3.6.4, MAC, Python 3.8.8

“rasa train” is getting stoped at data validation even there is not any validation conflict OR error

Logs:–>

2023-09-04 14:48:46 INFO rasa.validator - Story structure validation… Processed story blocks: 100%|███████████████████████████████████████████████████████████████████████████████| 657/657 [00:00<00:00, 762.53it/s, # trackers=1] 2023-09-04 14:48:47 INFO rasa.core.training.story_conflict - Considering all preceding turns for conflict analysis. 2023-09-04 14:48:47 INFO rasa.validator - No story structure conflicts found. Project validation completed with errors. (env) d-s %

same data works well on RASA v3.5.5