Can you share the log files so I can take a closer look?

Yes, you can download the logs from here.
https://transfer.sh/JDnbtA/ant_sac.tar.gz

Hmmm... Could you post your versions for Tensorboard Reducer, TensorBoard, and PyTorch/TensorFlow? Running the command you posted above

tb-reducer ant_sac/*seed*/log/serial/ -o out -r mean,std,min,max --lax-steps

on the data you shared, my TB dashboard looks very different.

Or maybe try reloading the dashboard a few times. I've known it to be a bit laggy in displaying all available data.

As I said, it has problem with the tag collector_step/reward_mean, but not evaluator_step/reward_mean
torch 1.13.1
tensorboard 2.12.0
tensorboard-data-server 0.7.0
tensorboard-plugin-wit 1.8.1
tensorboard-reducer 0.3.0

Oops, my bad. Didn't read carefully enough. I'm not fully awake until I've had my 2nd tea or coffee. 😄

I took another look and I think the problem is some of the runs are empty, resulting in those steps being filtered out.

If you re-run your command with --min-runs-per-step 1

tb-reducer ant_sac/*seed*/log/serial/ -o out -r mean,std,min,max --lax-steps --min-runs-per-step 1 --overwrite

it does include many more steps in the reduction but it gives this jumbled mess which isn't very helpful either.

I'll have to dig deeper to see why that happens but maybe you can try removing/excluding the empty event files as workaround in the meantime.

Actually, all logs that match ant_sac/*seed*/log/serial/ are not empty. You can remove all logs in the buffer subfolder and get the same results. I think again about this issue. It might be caused by the different logging time steps of the tag collector_step/reward_mean. The data points of the tag evaluator_step/reward_mean is always logged at the same time steps, while the data points of the tag collector_step/reward_mean is logged at random time steps. Is there a way to use some interpolations like linear interpolation or spline interpolation when reducing the logs?

Sorry for the long radio silence.

The data points of the tag evaluator_step/reward_mean is always logged at the same time steps, while the data points of the tag collector_step/reward_mean is logged at random time steps.

Ah, that could be it. Glad you figured it out.

Is there a way to use some interpolations like linear interpolation or spline interpolation when reducing the logs?

I haven't looked into that but happy to take a PR for this feature. You may be able to use the pandas interpolate method for this.