Forestone Hinoki Clarinet Bb H

I have been using these reeds for sometime and was quite satisfied with response, sound and quality. However, these reeds have started warping. One reed in the upper right corner. Two others, the tips are warping outwards, while the last reed has warped inwards, completely closing off air to a mouthpiece.

All of these reeds have been taken off after every time I play, to swab my instruments. I have also ensured that none of them lay flat on a surface, thereby trapping moisture under the reed.

I am flabbergasted that composite reeds can act this way. My only conclusion can be - very poor workmanship.