DOpus has a Issue When Run Avro software

Avro is a Free Software for Writing Bangla in Windows
Here is the official Site Link Avro Keyboard - Unicode and ANSI compliant Free Bangla Typing Software and Bangla Spell Checker
But After I Open my DOpus When I Open the Avro software then DOpus behavior's Like Strange. Its Seems to Changed Focus and de focus all the time. So I cant use DOpus in that stage. You can check out your self downloading and install avro keyboard. If I fail to make you understood the problem please let me know then I have to record my screen video

This is likely something they would need to fix on their side. From the point of view of Opus and other software, the type of keyboard(s) involved should not matter or even be visible to applications. Input them should look like input from a real keyboard, and they shouldn't interfere with window focus.

The only thing within Opus I can think of is to try disabling Transition Animations, which could confuse IME type applications if they try to stay on top of Opus (although it's not an issue with any IME I have tested).