"Size" column can't be hid by Edit columns. steps to reproduce: 1. Start with a default Yocto project (qemux86), start the Toaster, and build "bitbake core-image-minimal". 2. In Toaster, select the build, and select the "Packages" link in the left sidebar. 3. Enable or disable "size" column by Edit columns. You can't see that the size column is hid. git commit: a43dba8c2904f9c1ce0425c53c5a7f4718121e6b
Just tried to replicate this on master/2d1660112e54653f7bb763939d0416472c49fe01, but it's working there (you can hide and show the size column in the Packages page using the edit columns menu)
Verified.