We received the following information directly from our contacts and would like to share it with you:

There is currently a known issue with mobile text input in the Alexa app. The responsible teams are already working on it and looking for a solution.

If you would like to switch back from Alexa Plus to Classic Alexa, you can do so at any time via voice command.
Simply say on one of your devices:
“Alexa, exit beta” or “Alexa, exit early access.”

Please note: This change happens on the account level. This means all Alexa devices linked to the same Amazon account will switch to Alexa Plus or Classic Alexa accordingly.

We are aware that the customer experience may feel a bit shaky at the moment. Work is ongoing toward a more stable long-term solution, especially for important skills.

Thank you for your patience and continued feedback.