IDEA EAP 2019.2 beta - Debug log / log configuration changes don't work

Hi,

with current EAP 2019.2 beta, my debug messages are no longer working.

I configured <idea>/bin/log.xml and added

<category name="com.my.plugin">
    <priority value="DEBUG"/>
    <appender-ref ref="FILE"/>
</category>

This works for 2019.1.
There also no effects if I change the root logger to DEBUG or create a corrupt log.xml. No error messages nor any debug message. Looks like log.xml is ignored.
Do I have to do additional configuration with 2019.2?