Clones are awkward. They can only carry out precise instructions over a short span of time or risk being exposed. If a random event of even the smallest kind should occur.(especially true if the spotlight and a critical eye is upon them), they may be thrown and glitch-out as we have seen.
Clones do not have real world physical body memory of the past. Individual memory/traits can be downloaded into the brain of the clone but the past was never physically/bodily experienced and stored. All of the body's senses, and organs, have multiple links to memory and each other which cannot be exactly reproduced, which is what creates unique individuals on a deeper level. It is a complete human experience and conscious/subconscious memory of the past that enables an individual to overcome and adapt to the unexpected surprises of everyday life. Clones are superficial shells that may be good enough for some tasks.