Internal Error: Sub-system: CHI, File: /quartus/sld/chi/chi_control_nodes_scan.cpp, Line: 227 - Internal Error: Sub-system: CHI, File: /quartus/sld/chi/chi_control_nodes_scan.cpp, Line: 227 Description Due to a problem in the Quartus™ Prime Pro Edition Software version 23.4 and earlier, you might see this error when opening the signaltap file from the Tool -> Signal Tap Analyzer or the project file list. Resolution This problem is fixed beginning with the Quartus™ Prime Pro Edition Software version 24.1. Custom Fields values: ['novalue'] Troubleshooting 15015916210 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 24.1 23.4 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']