Lactate Threshold Guided Test adds 3 minutes bug

Anyone else getting this?

I've done the test twice and noticed the same thing both times. Exactly 3 minutes added onto the total elapsed time in GC (making pace slower too), yet in Strava and the exported GPX it has the correct time. Syncing GC with Smashrun has the wrong time too. eg:

Garmin Connect / Smashrun: 31:00
Strava / GPX file / second watch: 28:00

Not a big deal just really odd.

Edit: Oh I just noticed on the splits page you can see the rogue 3 mins added in, and it's also failed to mark a lap after the final 4-minute effort, so maybe the issues are related