“sha1-x86_64.asm not found. You need to find sha1-x86_64.asm to view the source for the current call stack frame” ,Exception thrown at 0x00007FFABAC94FA3 (UE4Editor-XMPP.dll) in UE4Editor.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF. Call stack shows crash in UE4Editor-XMPP.dll! sha1_block_data_order() Line 1438. I attempt to check the integrity of the engine and re-download the engine still crashed.