Sentence Mode Listening non Working on Mobile?

When there is no audio track attached to text on LingQ I am still able to listen to TTS with Sentence Mode but that is only on my laptop. Is it possible to get this feature happening on the mobile app? When I know all the words in a sentence I like to test my listening first but, with generated tts still not working this doesn’t seem to be possible with the mobile app?

I assume you are using Android? Because on iOS it is working, I have just tried it in sentence mode, without audio track, and it works without the need to generate any audio.

It seems fine for me on Android too. WHne di you start experiencing the issue?