Hi this can sometimes happen when applications share the audio device, in this case ioStation 24c, but the applications may utilize different sample rates. Try making sure Studio One and any other applications are using the same sample rate, that is 44.1khz, 48khz, 88.2khz, etc. This may mean checking your Windows audio settings for the sample rate being used by windows. Usually 44.1khz is the default.
You may also want to review these knowledgeable articles for further assistance like releasing the audio driver when switching between applications.
How do I disable exclusive mode for a Windows audio device?
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