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I am using the Patch Program option of IDA Pro to edit the assembly of a binary at runtime.

When I enter the following instruction:

mov rax, [rsp + 0x48]

I get an "Invalid operand" error from IDA Pro. I tried changing the above instruction to different variants as shown below:

mov rax, [rsp + 48h]
mov rax, [rsp + 48]

However, it still gives me an error.

This is a valid assembly instruction. I can edit the assembly in other softwares like x64_dbg and it works with the above disassembly.

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