VST and Groove Agent play at half speed when connected via Focusrite but not Realtek Low Latency

This problem happens intermittently and I’m sure it is a set up issue I have caused. The playback is at half speed on the VSTs and I cannot record tracks. This is when set is via Focusrite. However if I switch to low latency ASIO through the laptop speakers the playback is fine. Normally i reset the driver in Studio Setup but this does not seem to be working. I would be grateful for any ideas please

could it be the sample rate on the focusrite?