Where have my sections gone (in my 2nd floor framing plan)?

[Design Apparatus]

Where have my sections gone in my 2nd floor framing plan? I have checked the visibility graphics (turned on) and the Reveal Hidden Elements (light bulb icon) and cannot find my section tags.
Any help?
Thanks

[damon.sidel]

Did you recently change the scale of your framing plan? If so, it might affect the sections "hide at scales" parameter. If you select the missing section in your project browser, then look at that parameter, you can change it so it shows in your framing plan. Might be it... maybe not.

[Design Apparatus]

My sections are meant to show up at scales 1/*" or better; my floor framing plan is 1/4" scale.
Next?!
Thanks for the additional knowledge (did not know that one)

[Design Apparatus]

Floor framing plan had "structural" checked under "discipline"...unchecked it brought the section marks back to visible :)