Aronium Lite Discount Error (OMR): Applying 0.025 discount results in 0.030 total discount

Hello, ​I am using Aronium Lite in a country that uses a currency with 3 decimal places (Omani Rial - OMR). I am running into a persistent rounding/discount error that I cannot resolve. The Expected Calculation vs. The Actual Result: *Original Total (Subtotal): 0.225 OMR (3 x0.075) *Discount Applied: Fixed amount of 0.025 OMR *Correct Total Should Be: 0.225-0.025 =0.200 OMR *Aronium's Actual Total is: 0.195 OMR The system is consistently applying a total discount of 0.030 OMR (an extra 0.005 OMR) which should not be there. But when i entered discount 0.100 OMR of 0.300 OMR It's come 0.200 OMR. Which is correct.. For the information: Troubleshooting Steps I Have Already Taken: 1.Windows Regional Settings: I have confirmed that the Windows Currency settings for both the Number tab and the Currency tab are set to 3 decimal places, and I restarted Aronium. 2.Cash Rounding: I checked the "Edit payment type 'Cash'" screen, and there is no "Cash Rounding Factor" setting available in Aronium Lite. 3.Tax/Discounts: I have checked the Tax Rates (which are 0.000) and Product/Global Discount Rule menus but found no setting that automatically adds 0.005 OMR. Could this be a hidden setting for 3-decimal currencies in the Lite version? Has anyone encountered this specific 0.005 OMR discrepancy before? Any help would be appreciated!