Hello, I have Phoenix it's a Third Party Viewer. Hope this trick that I use helps you when you're a cloud.
You need to open the Advanced menu window, pressthe keys Ctrl + Alt + D, above in the main Menu you can see the Advanced menu.
Go to: Character >> Character Tests >> Test Male or Test Female (This options changes the avatar's appearance to your default male or female avatar)
Then, you avatar appears as a newbie in a short time, but don't worry, you can change all again with your clothing, shape, skins and all that you had before you was a cloud.
In Viewer 2, you need to press keys Ctrl + Alt + R on your avatar for rebake your textures. This option forces your computer to resend, the skin, clothing and other stuff of your avatar to your normal appereance, but this option never works for me, but yes in cases for reload blur textures of your clothes or skin and others things InWorld.
Some people uses a Bald Base, but this option never works for me, forget this.
Well, hope some options works for you, the first options always works for me but you must have the Phoenix Viewer or SL Older version to make this.
See you Inworld
Krystal Algoma