I had two sapling seeds in a crate in my castle as reserve. I took the seeds and went into the abyss and when I was killed I was transfered as normal to the sapling. I gathered my belongings and tried to plant a seed and it did nothing. I logged out and tried again and nothing. I dropped the seeds on the ground and picked them up and tried again. nothing. when I put my cursor on the seeds it said 2 seeds of the silver sapling. I took the seeds back to my castle and used poppy dust to look at them. It said they were "plain seed". I went back to the crate and looked and two sampling seeds had reappeared. I now have two plain seeds that I did not have before and my original sapling seeds. I went back to the sapling and tried with the new seed and it worked as intended.