Umm, there is something about the execution time. If I run this as a script it actually works. I was trying to execute in a Jupyter notebook.
Maybe there is a respawn mechanism that loads back the coordinates from the telescope and when I overwrite them with my target coordinates I have to apply the settings before the next refresh. Anyway, the script works. It can crash at the end because there isn't no disconnect from the server and probably the C++ doesn't invoke the destructor at the end having some memory leak. So if someone wants to use I suggest to add indiclient.disconnectServer() at the end.

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