Liquibase maven two databases

Hi,

Can anyone tell me why if I run “mvn clean install” with the below configuration both databases are updated but if I run “mvn liquibase:update” I got the error “The database URL has not been specified either as a parameter or in a properties file”?

<build>
    <plugins>
        <plugin>
            <groupId>org.liquibase</groupId>
            <artifactId>liquibase-maven-plugin</artifactId>
            <version>4.21.0</version>
            <executions>
                <execution>
                    <id>1</id>
                    <phase>process-resources</phase>
                    <configuration>
                        <propertyFile>uat1-owner/liquibase.properties</propertyFile>
                    </configuration>
                    <goals>
                        <goal>update</goal>
                    </goals>
                </execution>
                <execution>
                    <id>2</id>
                    <phase>process-resources</phase>
                    <configuration>
                        <propertyFile>uat2-owner/liquibase.properties</propertyFile>
                    </configuration>
                    <goals>
                        <goal>update</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

Thanks in advance.