Adding all violated cuts at the root node

Hi,
I am truggeling with adding all violated cuts at the root node.
I want at the root node: Gurobi added violated cuts → reoptimize → add new violated cuts → reoptimize → …→ no violated cuts are found.
However, Gurobi jumped to the other nodes before adding all violated cuts at the root node.
Is there any way to add all cuts that I want to add at the root node?

My C++ code is as follows:
void callback() override {
try {
if (where == GRB_CB_MIPNODE) {
int status = getIntInfo(GRB_CB_MIPNODE_STATUS);
if (status != GRB_OPTIMAL)
return;
double nodecnt = getDoubleInfo(GRB_CB_MIPNODE_NODCNT);
std::vector<double> xvals(num_vars);
std::vector<std::vector<double>> zvals(
num_vars, std::vector<double>(num_vars, 0.0));

for (size_t i = 0; i < num_vars; ++i)
xvals[i] = getNodeRel(x[i]);

for (auto& it : z) {
auto [i, j] = it.first;
double val = getNodeRel(it.second);
zvals[i][j] = val;
zvals[j][i] = val;
}

std::vector<Cut> cuts;
if (nodecnt == 0) {
cuts.clear();
separateCutsfor2Variables(x, z, xvals, zvals, num_vars, tolerance, num_vars, cuts);
for (auto& c : cuts) {
addCut(c.expr <= c.rhs);
}
cuts.clear();
separateViolatedCutsfor3Variables(x, z, xvals, zvals, num_vars, tolerance, 3 * num_vars, cuts);
for (auto& c : cuts) {
addCut(c.expr <= c.rhs);
}
return;
}

Could you please help me to solve the issue?
Thank you very much!

Adding all violated cuts at the root node

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