Is it necessary to enter effects in the form of increased internal defectiveness if it is the result of the inspection?

The general rule is that when you describe effects of the failure, you should assume that it goes through internal and external processes without any control, and „goes” towards the final customer. If the failure does not cause the process to stop  (e.g. because it is impossible to mount a part due to too small diameter of the hole), you should not describe the so-called internal effects (in the process). Such approach prevents the risk analysis from showing all problems which may be relevant to the company adopting FMEA. For this reason it is a „good practice” to enter an internal effect (for the company) in the form of increased defectiveness,  a need to repair, etc. In this case FMEA will demonstrate problems arising from a specific failure more comprehensively.