Why does Android TalkBack not select this Jetpack Compose OutlinedTextField if I have specfic text as the placeholder?

I'm testing my application for accessibility compatibility using TalkBack. However, certain OutlinedTextFields are being skipped and are unselectable even by clicking if TalkBack is enabled. I created a sample app using the latest versions of Kotlin/Gradle/Compose to make sure it wasn't something to do with my project setup.

Changing the "placeholder" text to certain values allows TalkBack selection, and other values make it unselectable (e.g. "MM/DD/YYYY" makes TalkBack skip the field, but "Hello World" allows TalkBack to select the field).

Code is as follows:

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            PlaygroundTheme {
                // A surface container using the 'background' color from the theme
                Column(
                    modifier = Modifier.fillMaxSize(),
                ) {
                    Greeting("Android")
                    OutlinedTextField(
                        value = remember{mutableStateOf("")}.value,
                        onValueChange = {

                        },
                        label = {
                            Text(text = "Date of Birth")
                        },
                        placeholder = {
                            Text(text = "MM/DD/YYYY") //TalkBack won't select the field with this placeholder

//                          Text(text = "Hello World") //TalkBack WILL select the field with this placeholder
                        }
                    )
                }
            }
        }
    }
}

@Composable
fun Greeting(name: String) {
    Text(text = "Hello $name!")
}

Here are the dependencies I'm using:

buildscript {
    ext {
        compose_version = '1.3.0-alpha01'
    }
}// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
    id 'com.android.application' version '7.2.1' apply false
    id 'com.android.library' version '7.2.1' apply false
    id 'org.jetbrains.kotlin.android' version '1.7.0' apply false
}

    id 'com.android.application'
    id 'org.jetbrains.kotlin.android'
}

android {
    compileSdk 32

    defaultConfig {
        applicationId "com.example.playground"
        minSdk 21
        targetSdk 32
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables {
            useSupportLibrary true
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
    buildFeatures {
        compose true
    }
    composeOptions {
        kotlinCompilerExtensionVersion '1.2.0'
    }
    packagingOptions {
        resources {
            excludes += '/META-INF/{AL2.0,LGPL2.1}'
        }
    }
}

dependencies {

    implementation 'androidx.core:core-ktx:1.8.0'
    implementation "androidx.compose.ui:ui:$compose_version"
    implementation 'androidx.compose.material3:material3:1.0.0-alpha14'
    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.0'
    implementation 'androidx.activity:activity-compose:1.5.0'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
    debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"
}

Are there certain strings or characters that are forbidden by TalkBack?