First Arcanist Thalyssra is missing dialogue options

Hi. I have exalted with Nightfallen. I completed all the Suramar achievement quest-lines. But when I come to Thalyssra in Shal’Aran she only has some text and no option to buy anything. I know she’s the Nigthfallen quatermaster and I want to get things from her.
I seem to not be the first one to encounter this problem: https://us.forums.blizzard.com/en/wow/t/thalyssra-wont-sell-items/499339/4

Hey Nussu,

Could you try the step mentioned in here? It may help you out!

I have the same issue. I have left the zone and came back. Tried in a party, tried out of a party. Even tried to quest synched with someone at a different stage of progression. She won’t sell me anything :frowning: