-dbrp argument behavior

[mtovt]

Hi! I have a question about -dbrp argument in kapacitor define ... command. When I pass dbrp through this argument, my queries don't works because of the following error

Error: enabling task X: batch query is not allowed to request data from "".""

It seems like no dbrp arg was applied.
The same behavior using

kapacitor define-template "${task_template}" -tick "${tick_file}"
kapacitor define "${task_name}" \
            -template "${task_template}" \
            -type ${task_type} \
            -dbrp "${INFLUXDB}"."${RETENTION_POLICY}" \
            -vars "${VARS_PATH}"

Documentation says

If the database and retention policy aren’t included in the TICKscript (for example, dbrp "telegraf"."autogen"), use the kapacitor define command with the -dbrp flag followed by ""."<RETENTION_POLICY>" to specify them when adding the task.

If I specify it inside query inside .tick script it works as expected. This is expected behavior? Why do we need -dbrp argument if currently I have to define dbrp in the tick script?

I'm using kapacitor:1.6.6-alpine docker image.