ebusctl options -f and -m not working with crontab

[maxx37]

Hello all,

I have a weird problem: when I do

  /usr/bin/ebusctl read -f -c bai Flame

in terminal window, it works fine, with or without the full path to ebusctl.

If I put the same thing in a cronjob, it does't work anymore, with or without full path.

This holds also when this line is used in a script file that is called by cron.

After trying a lot, I found out that the problem is specifically linked to the -f option, and also to the -m option.
Other options like -v or -n are working perfectly, both in cron , script files called by cron, and on command line, even with several options combined.

Apparently, some kind of process that does the forced read from the bus is not starting from within cron.

Anybody has an idea for a workaround ?

Beste regards, Marc