This message was deleted.

I got this fixed. Problem was caused by echoing accessID in linux with

echo "domain/username" | base64

as it adds /n to the end of the accessID. Therefore correct way would be

echo "domain/username" | base64 | tr -d '\n'

. Other option is to add the secret via e.g. Lens where I actually spotted the problem. Even https://www.base64decode.org/ didn't show the /n in the string.