Regex validation error

I have created example project where you can find not working regex as expected.

I would like to have modules that ends with "Ui" in their name. So there should be allowed to reference/depend from non UI modules to UI but UI module cannot depends another UI module.

For example modules:

• composeApp
• libUi
• testUi
• another

The composeApp could depends another and all Uis, but libUi can depends composeApp (logically do not need that) but could also depends another.
So i found restrictions that module that ends with Ui could refers just non-ending Ui modules and modules that not ends with Ui could reference all modules.

Non ending modules regex: ^(?!.*Ui$).*$
All modules regex: .*

Ending Ui regex: .*Ui$
Modules that NOT ends with Ui: ^(?!.*Ui$).*$

Regex could be checked https://regex101.com/

There is configuration

moduleGraphAssert {
    configurations += setOf("commonMainImplementation", "commonMainApi")
    maxHeight = 3
    allowed = arrayOf(
        ".*Ui$ -> ^(?!.*Ui$).*$",
        "^(?!.*Ui$).*$  -> .*",
    )
    restricted = arrayOf(
    )
    assertOnAnyBuild = true
}

Build build ends with error:
Failed to notify build listener.

[':composeApp' -> ':shared'] not allowed by any of ['.Ui$ -> ^(?!.Ui$).$', '^(?!.Ui$).$ -> .']
[':shared:libUi' -> ':shared:testUi'] not allowed by any of [':.Ui$ -> ^(?!.Ui$).$', '^(?!.Ui$).$ -> .']

The sample project:
MyApplication.zip

Start by reproducing the failure with the attached MyApplication.zip and the shown moduleGraphAssert configuration. Compare the reported composeApp-to-shared and libUi-to-testUi edges with the allowed regex patterns and inspect the plugin entry point that evaluates those rules. Done means the intended non-UI and UI dependency relationships are accepted or rejected correctly without the build-listener error.