@JonB Thanks! That saved me a good deal of troubleshooting. It turned out the problem was a hard path to a file inside the C program which caused it to run correctly when invoked from it's native directory, but caused a segfault when called by Qt since the paths were different. The problem is completely fixed now.
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Unsolved Unable to build static Qt
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Solved MAKELONGLONG macro
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Unsolved How to use Qt Wayland
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Unsolved Create signal with / from stdin
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Unsolved Weird Behavior for QStackedWidget
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Unsolved Passing Variable Between Forms
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Unsolved Using QCA Encrypt Library with Qt >5
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Unsolved qt doesn't see zlib
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Unsolved Beautyfier error
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