CFD Online Discussion Forums - update dictionary within runTime loop

Hello.
Following this and this I'm trying to update a subdictionary of dynamicMeshDict whitin the runTime loop of pimpleDyMFoam.C with

Code:

myDict.set("name",value);

but I'm facing the same problem as the first link above: the code compiles with no errors but the value does not update. I changed the WRITE_OPTIONS of the dictionary to AUTO_WRITE as suggested in first link but the problem persists. Here's what I have:

Code:

const word dictName("dynamicMeshDict");

    const word subDictName("solidBodyMotionFvMeshCoeffs");

    const word subsubDictName("rotatingMotionCoeffs");

    fileName dictPath;

    dictPath =runTime.constant()/dictName;

    IOdictionary dynamicMeshDict

                   (

                    IOobject

                            (

                            dictPath,

                            mesh,

                            IOobject::MUST_READ,

                            IOobject::AUTO_WRITE,

                            false

                            )

                   );

Then, within runTime loop, I have:

Code:

newomega = newomega + domegadt;

        vector omegav = vector(dynamicMeshDict.subDict(subDictName)

                                          .subDict(subsubDictName)

                                                 .lookup("axis"))*

                readScalar(dynamicMeshDict.subDict(subDictName)

                                          .subDict(subsubDictName)

                                          .lookup("omega"));

        dynamicMeshDict.subDict(subDictName).subDict(subsubDictName).set("omega",newomega);

I'm using OpenFOAM-v1606+
Any help in figuring out why "omega" is not being updated in dynamicMeshDict with really be appreciated.
Thanks for reading.