Troubleshooting

Stacks errors in Clarity Delay (OS2, AuthFile, LinkFile)

OS2, AuthFile and LinkFile errors only appear in the legacy Clarity Delay licensed through Stacks.audio. Updating to Clarity Delay 1.2.0 or later moves you off Stacks and fixes every one of them.

Clarity Delay Updated 2026-10-04

Why you see it

OS2 is an error from Stacks.audio, the licensing system the legacy Clarity Delay (1.1.0 and earlier) still uses. Only that version shows Stacks errors, and they cannot be fixed on the Stacks side.

Every Stacks error, one fix

All of these come from Stacks, not from Clarity Delay itself, and all of them go away when you update.

ErrorWhat Stacks says it means
OS2Seen in the legacy Clarity Delay. Stacks does not document it.
AuthFile_MissingThe license file Stacks needs is missing.
AuthFile_ExpiredThe license was not renewed, usually because the computer was offline for more than 30 days.
AuthFile_NotActiveThe license was never activated on Stacks' side.
AuthFile_ErrorThe license file is invalid.
AuthFile_CorruptThe license file is damaged.
LinkFile_MissingStacks cannot find the file that points to the product's content.
LinkFile_FolderMissingThe product's content folder is missing.
LinkFile_SamplesMissingThe product's content is not in its folder.

AuthFile_Expired in particular can never happen again after you update. Clarity Delay 1.2.0 and later never need to check in, so there is no 30-day clock to run out.

The fix: update Clarity Delay

Clarity Delay 1.2.0 and later are licensed by Raytown Productions directly, not by Stacks, so Stacks errors cannot happen in it. You also get a perpetual license: once activated, it works offline and never needs to check in.

Your license comes with you at no cost. Follow Moving from Stacks to the new Clarity Delay; it takes a few minutes.

Need help?

Email dsp@raytownproductions.com with the error you see and your Stacks purchase email.

Still stuck? Email support with your error number.