The 3ds Max SDK now ships with asserts turned off. This means that users will not see assert dialogs popping up.

With asserts turned off, the following code fails:

assert(p = new CmyClass);
p->stuff();

There are two solutions:

1. remove the asserts
2. fix the code to remove dependency on their existence since it is possible that plug-ins can be compiled with or without asserts enabled.

We recommend that developers always use 3ds Max SDK DbgAssert instead of Max's assert.