This is probably not going to be implemented on the microcontroller targets, might be something for Linux Native.
There's not really something to "debug" about the traceroute tool. It has been proven to work endlessly (I have seen screenshots of traceroutes of 5, 6 and even 7 hops), but you have to have a stable two-way connection, just like acknowledgments on direct messages. There is only 0-hop reliability, so if one transmission on the route gets corrupted due to e.g. a collision, there won't be an answer.
This is not really a firmware request. E.g. the iOS app already shows the time an acknowledgment for a direct message has been received.
Platform
ESP32
Description
Hey, here is a short wish list :-)