What steps will reproduce the problem?

1. Setup an autoinvite
2. Be inside blackrock spire
3. Attempt to auto invite people passed a raid group size of 5

What version of oRA3 are you using?

Latest v2-classic

Do you have an error log of what happened?

no

Please provide any additional information below. (example: localization of your client if not enUS or enGB)

Same issue over here. Looks like the addon is checking if your group is full, rather than if the raid as a whole is full. Workaround is to move yourself to the last group.