Thanks to @mikiya1213, it has been brought to my attention that the medium-replay models have incorrect model attribute naming, preventing the online fine-tuning from them. I've re-uploaded the medium-replay models, and have tested on my end.
Closing as I've confirmed with @mikiya1213 via email that the updated models are working. Please feel free to follow up if anyone encounters issues with the pre-trained models.
Thanks to @mikiya1213, it has been brought to my attention that the medium-replay models have incorrect model attribute naming, preventing the online fine-tuning from them. I've re-uploaded the medium-replay models, and have tested on my end.