Setting use_sim_time without launching separate roscore
To get Rviz to play my rosbags correctly after the first loop (using arguments loop, pause, and clock), I have to start a separate roscore and do rosparam set use_sim_time true. Setting this param in a launch file that launches Rviz and the rosbag play command doesn't work: After the first loop the /tf transforms aren't published correctly anymore.
Can I do this in one launch file somehow?
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