Quartus 18.0 generates a different RBF file for each compile. What setting is causing this behavior? Please see details section

Thanks for the reply. I understand that the Assembler generates all the programming files and can be turned off during compilation, but that does not address my original concern where the output of the compilation (RBF file) is different for each iteration. We should get the exact same output every time we compile since the input source files and compile settings are the same. Could you please review that attached QAR file and investigate what is the root cause for this issue? Thanks.