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Please note
This problem will be the same with every Garrys Mod server you play on, it is not unique to MoronYard.
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With the release of the Steam pipeline, all of the games which you had mounted on to Garrys Mod will have been unmounted and will need to be manually re-added.
Mounting Games!
1. Load Garrys Mod, and press the first button in the lower left corner of the main menu.
2. Tick the boxes on the relevent games (TF2, CSS, and Portal).
Updating Games!
If you are like me, and do not play many games then you will find most of your games being unavaliable to mount. This means they haven't been updated to the new format. To convert them, you need to go to your steam library and then launch the games.
This will trigger the conversion, and once it has finished you will be shown a window similar to:
For Smash/Slope, you will need to make sure the following games are mounted:
- Counter Strike Source (For map materials, worn items and models)
- Team Fortress 2 (For worn items)
- Portal (For worn items)