push notification problem

My website upgraded the pushwoosh plugin to version 2.3.16, but problem occurred when I push my new post, instead of sending message from the message box only the title of the post was sent (I have fill in and tick the message box). This problem didn’t happen when I was using version 2.3.14.

I notice there is a new column underneath the message box where “Filter name” is suppose to fill in. What is this “Filter name” mean?

I reverted back to version 2.3.14 but the plugin upgraded to the new version automatically. Is there anyway to prevent it from upgrade automatically?

https://www.ads-software.com/plugins/push-notifications/