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+
+## Common issues and settings
+
+### Check compatability
+
+Vrchat has 3 SDKs they release: [Link](https://vrchat.com/home/download)
+Make sure you update both VRC's SDK and your copy of the marker.
+* SDK2
+    * For 2.0 avatars.
+    * Use an [SDK2 release](https://github.com/theepicsnail/Marker/releases)
+* SDK3 - Avatars
+    * For 3.0 avatars.
+    * Use an [SDK3 release](https://github.com/theepicsnail/Marker/releases)
+* SDK3 - Worlds
+    * The marker is only for avatars. For worlds [this](https://booth.pm/en/items/1555789) is a common solution.
+
+### Fixing errors
+
+If something goes wrong, you can clean things up. 
+
+If you did not use your own FX controller (or you clicked a "setup 3.0 defaults" button):
+
+* You can just delete the stuff generated in /Snail/Marker3.0/Generated and try again.
+
+If you are using your own FX controller
+1. Open your FX controller and delete the layers Gesture<hand>Maker and ToggleMarker
+2. Delete from your params list "ToggleMarker"
+3. Delete from your menu "Toggle Marker"
+
+
+### Upload checklist
+
+1. Always make sure you avatar **DOES NOT** have a Animator Controller assigned in the default Animator component.
+    *  This has a random chance of breaking things
+2. Always check your layers and make sure the weight is 1.0
+3. On the trail renderer:
+    * Make sure Emitting is off
+        * People forget to turn it back off after testing
+        * Your marker will start out drawing by itself if you forgot
+    * Make sure the time is set to 120 by default
+        * Changing this incorrectly may make the pen not work
+
+
+### Common configs
+
+* If the speed for your marker is too slow
+    * You can adjust this in the animation controller
+    * Change the transition state exit time to something very low.
+
+* If you want the color to match the Trail Renderer components Gradient Color
+    * Set the materials shader to UI/Default
+
+* If you want to control the marker with the opposite hand
+    * When running the setup script select opposite hand
+
+* There are other Materials available with color choices in /Assets/Snail/ExampleMaterials