There are several problematics in the LRA hunt.
The first one is the leakage of information. One of the parameters is that Kampala is not really playing "franc jeux". Kampala does have many interests in keeping the LRA as an active threat in DRC and in South Sudan. Does not mean they do it but this could be affecting their motivation. Also, if DRC is a chaotic failed state, South Sudan is a unborn dead body. So keeping the LRA active gives a good reason to Kampala to deploy troops up to CAR. I would call that the Rwandan strategy.
The second thing is that LRA released an important number of former members. When they are not integrated into UPDF, they are sent back home or to the refugees camps in South Sudan by the UN. They receive no psychological support, no reintegration programs… Even UPDF is complaining about UNICEF Sh@@ty work.
As former LRA members cannot reintegrate, they replicate what Kony taught them for a living.

Hope this helps to understand the mess.