All instruments are sounding a semitone lower

Dorico
1

Hi, for some reason now all the instruments are sounding a semitone lower than they should. I’ve checked the tuning and it’s set to A=440.
Don’t know what’s going on. Did this happen to anyone?
Thanks

2

Normally this results from an unexpected change of sample rate caused by another application on your computer. Go to Edit > Device Setup and choose a different value from the Sample rate drop-down, wait a moment, and then re-select the original value. That should sort it out.

3

Hi, that worked. Thank you so much, I’d never be able to sort it out by myself.
Thanks