Welcome to Ubisoft Discussions @Miko251 .
I am sorry to hear you experience two issues and understand this can be a frustrating experience.
We previously received reports from other players regarding the indicator for voice chat but it is marked as resolved, therefore could you please make sure your game is fully updated?
Speaking about "Failed to synchronize achievements" error, I can see you've already performed some basic troubleshooting steps. Please also tr...