Hi Frey,
You can use many tLogrow in your job. There is no such limitation.
Other two tLogRow is not able to show value becaues You may not have defined Schema.
If You have already defined Schema in those 2 tLogRow, then input may have null values.
tLogRows need to have input rows with defined schemas since they are generally used for logging and/or debugging, tracing what the data looks like in that particular section of the job.
Make sure the input row to the tLogRow has atleast 1 variable in the schema that can be printed to the console, and change the display settings to Table or Vertical for easier viewing.
