source map error

After updating to version 7.3.4 we get the following error:

Creating an optimized production build...
Compiled with warnings.

Failed to parse source map from '..\node_modules\arc\src\arc.ts' file: Error: ENOENT: no such file or directory, open '..\node_modules\arc\src\arc.ts'

Failed to parse source map from '\node_modules\arc\src\coord.ts' file: Error: ENOENT: no such file or directory, open '\node_modules\arc\src\coord.ts'

Failed to parse source map from '\node_modules\arc\src\great-circle.ts' file: Error: ENOENT: no such file or directory, open '\node_modules\arc\src\great-circle.ts'

Failed to parse source map from '\node_modules\arc\src\index.ts' file: Error: ENOENT: no such file or directory, open '\node_modules\arc\src\index.ts'

Failed to parse source map from '\node_modules\arc\src\line-string.ts' file: Error: ENOENT: no such file or directory, open '\node_modules\arc\src\line-string.ts'

Failed to parse source map from '\node_modules\arc\src\utils.ts' file: Error: ENOENT: no such file or directory, open '\node_modules\arc\src\utils.ts'

does not effect functionality but still thought to report it. thanks

Reproduce the optimized production build on version 7.3.4 and inspect the source-map references for node_modules/arc/src/arc.ts, coord.ts, great-circle.ts, index.ts, line-string.ts, and utils.ts. Trace how those references are packaged, then verify that the build completes without the reported missing-file warnings.