On some motorways (the M25 is a good example), ABRP will tell you at every/most junctions to "take the right hand fork". So instead of knowing I need to exit at junction x in y miles, I have to check for directions after every single junction which is silly, also confusing as the directions don't sometimes conform to the signage.
This bug appears to be due to the main route at the junctions this happens at being rendered as a "kink" which isn't present in real life, and the algorithm thinks it's a fork.
We are actively working on this topic and it may already have been improved. Could you send us an example plan or two (or just lat/lon coordinates) so we can double check that we are solving the right problem?