Simulation actors disappear while training

Hi,

We’re experiencing weird anomalies while training Franka robots (our task is adapted from Franka cube stack). In the middle of the simulation, when reaching 5k-7k epochs all of the franka actors disappear (See attached image). Logs reveal nothing.

Was wondering whether this is a common issue.
Thanks

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Hi, I’m having the same issue, did you find the cause or any information?