I just unpacked my Eris 4.5 BT. When I connect my iPhone 11 Pro to the speakers via Bluetooth, a very annoying issue happens. The very first beat of the songs does not start correctly. it does not start from the very beginning. It's like the song started 1 millisecond before the speaker starts playing the song. The error is very irritant and consistent. The only situation when it does not occur is with songs that are in continuous sequence.