RemoveUnusedImports does not work

[q3769-patientpoint]

Not sure this is related to #1819 (comment), so opening a new issue here.

The removeUnusedImports is not working, with the setup

            <plugin>
                <groupId>com.diffplug.spotless</groupId>
                <artifactId>spotless-maven-plugin</artifactId>
                <version>2.44.4</version>
                <configuration>
                    <java>
                        <palantirJavaFormat>
                            <version>2.63.0</version>
                            <style>PALANTIR</style>
                            <formatJavadoc>true</formatJavadoc>
                        </palantirJavaFormat>
                        <removeUnusedImports/>
                        <importOrder/>
                        <formatAnnotations/>
                    </java>
                </configuration>
            </plugin>

on Maven 3.9.9 and JDK 21.

There is no error in the console but unused imports are not removed at the end of the run.