While remaking a playback template made of several different libraries, I can see how important it is to give playing techniques and playback techniques coherent names.
If you have ‘gliss. Maj2 Up’ in a library, and ‘glissando maj2 up’ in another, they will conflict, and one will prevail over the other (usually, the one you do not want).
Editing existing techniques not always works, and it is better to start anew from one library, and then do the same in the others.
Use a spreadsheet to write down the full name of the technique, the name of the playing technique, it’s name in the score, the playback technique or the add-on. Respect this list when editing a playback template.