Adventure Invitation Bug!! ** READ.. Or you may lose out on adventures **
When accepting invitations to join an adventure you must make sure to have atleast 1 general on your island. (i.e. In case you were in an adventure and moved them all there.) If you don't have any general's present on your island and accept an invitation to join an adventure it will give the the initial popup saying you 'Joined adventure' but will never give the adventure button on the right hand side to allow you to send general's there and whoever sent you the invitation will show you as part of the adventure and will not be able to reinvite you or anyone else.
The adventure therefore must then be completed by whoever sent the invite solo and you will not receive any rewards since you weren't able to help out. It happened to me twice.. First time I was suspiscious that no general was the cause then a friend of mine accepted an invite and she did not have general's present and same thing happened to her.
<Edit>
Also it does not appear in the quest menu "!" for you to check it so it's not possible to get it to appear that way. Even logging in and out will not fix it.
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2nd Invitation Bug - Sort of what Sirroy was talking about down below.. Except I was on my island and I clicked accept invite.. but I didn't wait for the invitation confirmation popup before I switched to another island to check buffs.. when I returned I noticed I didn't have the adventure button again.
So also make sure to stay put after you accept the invite till you actually receive it and get the adventure icon on the right.
Use your Quest Log instead...
Hello, Hope this helps:
From: In-game Support [ingame.support@thesettlersonline.net]
"Thank you for sending in your question. The adventure is available on their end however they may need to access it from the quest log instead of the normal box on the right side of their screen.
'The Settlers Online' Support Team"
The "Quest Log" referenced is the tag with the "!" on it just next to your avatar's picture in the upper left hand corner of your screen where you get your normal and daily Quests from. If you're active in an Adventure and you do not see the normal Adventure tab on the right side of your screen then you can access the Adventure through this alternative method...