delete multiple messages within a thread via textra

[AM_SOS]

Hi all,

The default android messaging app (Moto G, KK 4.4.4) doesn't allow you to delete multiple messages in a thread at one go. You have to hold down on an individual message and press delete.

Textra has this feature. I assumed that deleting messages in a conversation will delete the copies in the default android app.
However, this seems erratic and sometimes the corresponding copies do get deleted in the default messaging app, and strangely sometimes they are not.

Can someone suggest how I can keep Textra in sync with the default app, so that deleting messages within a conversation would automatically delete them in the default app?

Thanks!