We've deployed a hotfix that will resolve issues with Carpentry and Tailoring workbenches (crafted) not having the container functionality that was intended to be added in a prior patch:

• https://shardsofbritannia.com/news/coming-soon-world-boating-sos-updates "Crafting workbenches are now containers. To update your existing workbenches, simply re-deed and re-place them. Materials can now be crafted from inside the workbench or directly from your backpack"

This fix is not retroactive, you will need to re-deed and re-place your workbenches to get them updated.