Problems with px4 logger

When I set the msg to the following format:
I use the following statement to post the logger
“struct execute_time_s et = {0};
orb_advert_t et_pub = orb_advertise(ORB_ID(execute_time),&et).
hrt_abstime starttime = hrt_absolute_time();
hrt_abstime time.
hrt_abstime endtime.
endtime = hrt_absolute_time();
et.timestamp = endtime.
time = endtime - starttime;[0] = 1;
But I don’t find the information in the log, however when I change the msg to the following format it can be written to the log successfully, why is this?