...Somehow, a patch was made which nobody could detect, ever. Somehow, 700 years later, scientists and textile experts were guided to that invisible patch, that nobody could detect, to oddly take their sample from that very same spot that nobody could detect. Having been directed to that invisible and undetectable spot, they then proceeded to test the sample of...something, and get the wrong result. What they should have done is take wholesale chunks out of whatever areas Jabba decides are appropriate, ruining the artefact in the process. And when that wanton destruction destroys the relic, Jabba will simply claim it was done wrong, secure in the knowledge that the thing is destroyed and there is nothing left to test.