I got to the point in the starting questline where the PC rescues their two young siblings Varic and Alda, and brother Nogand takes them to Jalmarys. I went to Jalmarys, bribed my way into the keep, and found Nogand. He had the exclamation point for a quest. I went up and pressed F. He addressed me as “Captain” and there was no dialogue about the two siblings. I was able to put Nogand back into my party. Now he shows in the Clan screen as “Travelling to Jalmarys”, same as another companion already in my party, while Varic and Alda still show as “Staying at Jalmarys”. I did not see them in the keep (held down Alt to look for their outlines), nor did any other character have the exclamation point for a quest.
Looks like the questline got broken.
Looks like the questline got broken.