When utilizing the override in Screen 9, Extensions (4868, 2350), in the field Income tax (-1 = none) [O] (code 198), the F1 includes the following information;
This entry overrides the automatic calculation of the total tax on Form IA-1040, line 60 for purposes of using the IA tax payment voucher as an extension payment only. Enter -1 if the income tax is zero.
This information should now reference line 58. Also note, when using this field the return must be marked for extension in order for the amount to flow.
This issue is scheduled to be resolved in a product update 04/30/2019 (Version 39.0430).