The trouble I've experienced is with ground retrievals of cinched TIPs. I've never had issues using them in the canopy for advancing or positioning.Curious to know what happened? , I use tight carabiner chokes frequently (for advancing and positioning anchors).
I almost always use a limb or trunk cinch TIP to access or exit the canopy on SRT. Once I'm back on the ground, I use a pull down line/rope/cord to pull the cinch out of the canopy and back down to the ground. If the limb cinch is set high and too snug, I can have trouble breaking the friction to free the cinch and pull down the works. In extreme cases this has required me to climb back up to the TIP to re-set the cinch to better facilitate a ground retrieval. Since I've started using a version of the Texas tug with a pulley, the pull down chore from the ground has gotten much easier and is almost always successful.