why do Inscription Trainers not working in the beta
CS is for live wow help and not development versions like the beta, you can submit suspected bugs through the ingame F6 panel for the WOTLK Beta:
https://eu.forums.blizzard.com/en/wow/t/how-to-submit-bug-reports-in-the-wrath-classic-beta/365118
Please mind that there may be more things that are simply broken or disabled in the WOTLK Beta and that you will not receive support but can create a topic here:
https://eu.forums.blizzard.com/en/wow/c/in-development/wrath-classic-beta/300
I’ll say the obvious, not everything works in Alphas and betas. Report it ingame.
thx all is not working in Org but it work in TB