Now build 502 is throwing this error too, but much less often than 490:

Version: '1.4 build 502'
Error message: 'HMODULE: 4194304 Unhandled exception EHandleOsError Exception message:Exception happened in Xotella.Timer1Timer Exception: EAccessViolation Message: Access violation at address 00404EB8 in module ''xolox.exe''. Read of address 39353918 Prev call stack: [00404EB8] Call stack: [00507ADE] [0043DEB2] [00421B7E] [00528239]'