Disappearing Runes (ALPHA CLIENT)

Ever since I started using the Alpha Client, I've encountered a re-occuring bug in the Rune Page section. Every so often, certain runes that I own will disappear from my inventory & I won't be able to build or experiment with rune pages unless I switch back to the Legacy Client. I reported this bug using the "Report a Bug" feature in the botom right corner of the Alpha Client, but I wanted to make sure this was seen on Boards as well. The only solution that I have found is that I have to exit the Alpha client & open the Legacy Client to restore the runes that had gone missing. Hopefully this is looked into & solved before the Legacy Client becomes unavailable.