Yes, same exact problem here, also on Raspi 3.
Running ModeSMixer2 v.20180616 on Raspbian Stretch.
The error I have in /var/log/syslog at precisely 00:00:00 local time is this:
modesmixer2[349]: *** Error in `/usr/local/sbin/modesmixer2': corrupted size vs. prev_size: 0x0175bc58 ***
Bye, Luca