REAPER doesn't list the Virtue action

Symptom: searching the REAPER Action List for Virtue FX Manager returns nothing after installing.

Check these in order

REAPER was running during install. Extensions load at REAPER startup. If REAPER was open while you ran the installer, fully quit and reopen REAPER — this is the most common cause.
The extension file is actually in UserPlugins.
- macOS: confirm reaper_virtue.dylib exists at ~/Library/Application Support/REAPER/UserPlugins/.
- Windows: confirm reaper_virtue.dll exists at %APPDATA%\REAPER\UserPlugins\.
If it’s missing, the install did not complete — reinstall following Install on macOS or Install on Windows.
Portable REAPER installation. If you run REAPER portably, the installer may have targeted your default REAPER resource path instead of your portable one. Reinstall and point it at the correct UserPlugins folder for the REAPER copy you actually launch.
Blocked by macOS Gatekeeper. If the extension file is present but REAPER still doesn’t load it, macOS may be quarantining it — see macOS permissions and screen recording for the related permission flow, or clear the quarantine flag:
Terminal window
```
xattr -d com.apple.quarantine ~/Library/Application\ Support/REAPER/UserPlugins/reaper_virtue.dylib
```

REAPER hangs on “loading plugin: reaper_virtue.dll” (Windows)

On some Windows machines REAPER stopped at that line on its splash screen on every launch, with nothing in the log. It could happen where another program hooks into REAPER as it loads, such as an antivirus or the NVIDIA or Discord overlay. Fixed in 1.2.3 — update. The cause was found by auditing the load path rather than reproduced, so if 1.2.3 still hangs for you, please tell us.