As of the 1.16.200 update, external connections to the server software for bedrock has completely stopped working. I have tested this on multiple systems with fresh files and can replicate the issue every time. The server shows up when querying using a tool such as https://bedrockinfo.com/ however when trying to connect with the Android client, it does not connect. 

Service running: https://gyazo.com/591fad99b7c6b8d9d8432d6b5029140c

Bound ports: https://gyazo.com/f19472d79780d260df016ff17f839778

Service shows as online with a query: https://gyazo.com/c5661f24181c3d1d7969dbc7acf14934