Building Unreal 5.3.2 from source compilation error

Development Programming & Scripting C++
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Hi, I have downloaded a fresh copy of the Unreal source code from git for release version 5.3.2 on Windows with Visual Studio 22, I was successfully building the 5.1 source before.

I have done the usual, checked out 5.3.2-release tag then running Setup.bat and GenerateProjectFiles.bat. The compilation of the UE5 main project then fails with a number of compilation errors, all seemingly related to functions such as ArrayMean, ArraySum, ArraySum2 etc. The first one being:

E:\UnrealEngine\UE_5.3.2\Engine\Source\Runtime\SignalProcessing\Private\FloatArrayMath.cpp(50): error C2039: ‘ArraySum’: is not a member of ‘ispc’

The code in that line is:

#if INTEL_ISPC
			ispc::ArraySum(InValues.GetData(), OutSum, Num);
#endif

I did search the forums for ISPC and the ArraySum function, but to no avail. I have not worked with ISPC before and I dont know if the INTEL_ISPC flag should true on my computer, I have not seen this before and haven’t done anything other than checking out the code and running the 2 scripts mentioned above.

I am wondering why no one else seems to be having this issue and I would appreciate any hints.

Thanks in advance

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Update: After tinkering several days with this with decreasing motivation I ended up deleting the repository, cloned a fresh copy and redid the steps described above and this time it compiles. I don’t know what caused the issue, but I hope this helps anyone with the same.