error in first train gen loss=0.0 about styletts2 HOT 5 OPEN

Today, I created a new training session, leaving it to run for about 60 epochs after 50th epoch when it began to update the gen-loss but when i run the train second stuck again :( Could you please check the Tensor Board to see if this behavior is normal?
here the Tenterboard

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i try train again 30h dataset new complete take 3 days now for train first, i stop in epoch 75 and when i run the second train again same problem :(

i am not sure what i do wrong , i need more epochs ? to work this problem please someone if can tell me to because this take days to finish now i use RTX 4090 why i get this error in second train i dont understand

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I think it means your loss becomes NaN, can you print all the variables and see if any of them is NaN?

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@yl4579 hi thank you very much for the reply there is not NAN in loss only 0 after 50 epoch i get values here the train log

train.log

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here also tenser board 30h dataset i try 76 epochs i stop

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