Maya and Arnold: How to Diagnose Silent Plugin Load Failures Using Log Correlation

Goal: Use Maya and Arnold logs to determine why Arnold does not appear in the render settings UI after a seemingly successful plugin load during a batch‑render deployment.

Constraints: The locations of maya.log and arnold.log differ across Maya versions and operating systems, requiring verification via the About window or MAYA_APP_DIR; a silent failure mode exists where Maya reports the plugin loaded but no error appears in maya.log, and the relevant Arnold diagnostic message (MTOA initialization aborted) is only written when the Arnold logger is set to debug level.

Questions: How can timestamps in maya.log be matched to entries in arnold.log to confirm a silent failure? What Arnold logger level is required to capture the MTOA initialization aborted message? Are there any other log indicators that differentiate a true plugin load success from a UI‑only absence?