PyMapdl crahes/looses connection, when running in a loop

🤓 Before submitting the issue

[x] I have visited the Troubleshooting section.
[X] I have searched among the existing issues.
[X] I am using a Python virtual environment.
[X] I am using the latest version of PyMAPDL and its dependencies (fully updated virtual environment). You can update them using pip install --upgrade --upgrade-strategy eager ansys-mapdl-core in your activated virtual environment.

🔍 Description of the bug

I want to do a mesh convergence study. For this i am running PyMapdl in a loop, solving the problem for different mesh sizes. This works up until a point but then it crashes (at a random meshsize so the crash does not occur at the same mesh size every time) with the following Error Message:

ansys.mapdl.core.errors.MapdlExitedError: MAPDL server connection terminated with the following error <_InactiveRpcError of RPC that terminated with: status = StatusCode.UNAVAILABLE details = "Connection reset" debug_error_string = "UNKNOWN:Error received from peer {created_time:"2024-06-06T11:36:14.151348247+00:00", grpc_status:14, grpc_message:"Connection reset"}"

I tried also to exit and reopening it for each solve (this takes extra time so not an ideal solution) however the problem remains.

🕵️ Steps To Reproduce

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💻 Which Operating System are you using?

Windows

🐍 Which Python version are you using?

3.11

💾 Which MAPDL version are you using?

MAPDL: 22.2, PyMapdl: 0.68.1

📝 PyMAPDL Report

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```text # PASTE HERE THE OUTPUT OF `python -c "from ansys.mapdl import core as pymapdl; print(pymapdl.Report())"` here ```

📝 Installed packages

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```text # PASTE HERE THE OUTPUT OF `python -m pip freeze` here ```

📝 Logger output file

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```text # PASTE HERE THE CONTENT OF THE LOGGER OUTPUT FILE. ```

ansys / pymapdl