Fork plugin ignores settings

[sundetova]

Hello, I tried to run fork plugin, but faced next problem:
com.shazam.fork.suite.NoTestCasesFoundException: No tests cases were found in the test APK: /Users/sundetova/myapp_monorepo/apps/myapp/app/build/outputs/apk/androidTest/develop/debug/myapp-develop-debug-androidTest.apk
My root build.gradle:

dependencies {
      ...
      classpath 'com.shazam.fork:fork-gradle-plugin:3.13.0'
  }

My app build.gradle:

apply plugin: 'com.shazam.fork'

fork {
    title = "My acceptance tests"
    testPackage = "/Users/myapp_monorepo/apps/myapp/app/build/outputs/apk/androidTest/develop/debug/myapp-develop-debug-androidTest.apk" //I specially put wrong path here
    testClassRegex = "^[a-zA-Z]*Test\$"
    poolingStrategy {
        computed {
            characteristic = "sw"
            groups {
                allDevices = 0
            }
        }
    }
}

I looked at #137 , there said that should set custom regex for test Class. I set custom regex, but it did not help, also, I found that any changes in fork settings do not affect. I put wrong path of apk, but error shows that fork ignores it.
Could you help with it?
Thank you!