Which version of the plugin are you using? Specifically, I’d need the info that the CCTM generates when you click on the “Report a Bug” link (see https://code.google.com/p/wordpress-custom-content-type-manager/wiki/ReportingBugs)
Here is what the “Report a Bug” link shows
*SYSTEM INFO*
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Plugin Version: 0.9.7.13-pl
WordPress Version: 3.8.1
PHP Version: 5.4.3
MySQL Version: 5.5.24-log
Server OS: WINNT
Language:
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ACTIVE PLUGINS:
* Advanced Custom Fields v.4.3.5 [http://www.advancedcustomfields.com/]
* Categories Images v.2.4.1 [http://zahlan.net/blog/2012/06/categories-images/]
* Custom Content Type Manager : Advanced Custom Post Types v.0.9.7.13 [http://code.google.com/p/wordpress-custom-content-type-manager/]
* Simple Taxonomy v.3.5 [https://github.com/herewithme/simple-taxonomy]
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CURRENT THEME: v.
I can’t reproduce the behavior. File a bug in the bug tracker following the instructions given — that way I can try to reproduce the error and I can track fixes in the bug tracker where they’re searchable. One of the things to test will be to try disabling the other plugins to help identify whether there’s a conflict.