Sometimes when using Waze the maps and directions work properly but the instructions (loudspeaker) don’t work. This is quite a serious problem because when navigating unfamiliar areas I can’t look at he screen due to traffic conditions. Is there a way to have the loudspeaker always functioning?
I haven’t experienced such problem. You can try changing settings, especially the voice. For example, if you have one of the TTS voices, they need extra computing power. Swap to another one without TTS, preferably when connected to a reliable WiFi network.
If you specify your phone model, OS and Waze version, someone will be able to provide better help.