* Frozen thresholds are not supported.

* Blenders that contain monotonic models do not display the MONO label on the Leaderboard for OTV projects.

* When previewing predictions over time, the interval only displays for models that haven’t been retrained (for example, it won’t show up for models with the **Recommended for Deployment** badge).

* User models are supported from the Repository tab.

* If you configure long backtest durations, DataRobot will still build models, but will not run backtests in cases where there is not enough data. In these case, the backtest score will not be available on the Leaderboard.

* Timezones on date partition columns are ignored. Datasets with multiple time zones may cause issues. The workaround is to convert to a single time zone outside of DataRobot. Also there is no support for daylight savings time.

* Dates before 1900 are not supported. If necessary, shift your data forward in time.

* Leap seconds are not currently supported.
