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GUI is very slow to connect to Acquisition Board or run impedance check #694

@Rodgers-PAC-Lab

Description

@Rodgers-PAC-Lab

Describe the bug
The GUI is slow and unresponsive when: loading a saved GUI config (or simply placing an Acquisition Board plugin in an empty signal chain) and also when running an impedance check.

By slow when opening the saved GUI config, I mean that it requires about one minute for "Initializing ONI Acquisition Board", one minute for "Scanning Ports", and one minute of a grayed-out interface without a message. The results are the same whether or not any electrodes are connected.

By slow when running impedance check, I mean that it sits at 0% for about two minutes, and then it would take about 20 minutes to get through 64 channels, except that it generally crashes part of the way through. I will paste the crash log at the end of this bug report.

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Additional context

Crash report available at this gist: https://gist.github.com/Rodgers-PAC-Lab/813f3272067fa098ee39e0adec90e0ba . During this session, I successfully recorded neural data. At the end of the experiment, I attempted to measure impedance, and that is when the crash occurred.

Thanks! -Chris

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