Not sure how much support I can expect but I have Dynatrace 6.3.1 and Splunk 6.3. I use the app referenced here: https://community.dynatrace.com/community/display/DL/Splunk+Application. All seems to work fine except for the purepath data which does not seem to reach Splunk.
In other words, the 'pp' sourcetype does not get populated with any data (i.e. the bt-export/pp log files are empty) whereas the pa and visit sourcetypes get populated with data.
There is no obvious error in the flume logs and I have tried restarting the flume process to no avail. On the Dynatrace side the "Purepath reference" option is ticked in my exported business transaction.
Has anyone encountered the issue before?