Strange behavior with library R3DESX0000, R3DES3260, R3PRDX0000, R3PRD3260

Hello

We have 2 SAP systems in the same AS/400 system, DES and PRD.

PRD this just installed and unique has one client one just as DES.

But the size of the library is much greater in PRD, for example R3PRD3260 has 2.451.708Kb and R3DES3260 has 257.228Kb another library R3PRDX0000 has 3.651.172Kb and R3DESX0000 has 1.083.212Kb.

Somebody knows because it can be and as it is solved?

Thanks