Roberto,
Thank you for the report. I have passed this along to engineering. We have received a similar report describing the exact same behavior, and we are actively digging into the issue. The challenge is that it appears very random, and we have been unable to consistently reproduce it. Before your report, we had only had one other.
Our current suspicion is that the screen may be experiencing a network connectivity interruption overnight, and then recovers once it wakes. Can you confirm if this screen was connected via POE/LAN or Wi-Fi?
We did recently release a new update for the AE TouchScreen application. While it does not specifically address this issue, it includes several connectivity-related improvements that may help.
AE Version 0.15.026
We will continue investigating and will share any findings or updates as they become available.
Thanks,
Mike