Not able to change state properties of redux reducer in function call - reactjs

Question

I have this redux reducer case, which has multiple conditions to work with. I am getting issue in changing value of state properties.
//code explaination:
In the second condition I am checking if action.hoverIndex > action.dragIndex, and if the condition is true then it creates "td" variable to hold the new state. After state change I have to make some changes in the properties of the state.
In the else part of the 2nd condition when I change the properties of "td" by assigning new value in for loop, it works as expected, but same thing when I try in "nestedConditionHandler" it does not work. not sure what is causing this issue.
const cmdArray = [
"ECommand",
"BCommand",
"CCommand",
"DCommand",
];
const cmdPair = {
ECommand: "EndE",
BCommand: "EndB",
CCommand: "EndC",
DCommand: "EndD",
};
const notFirstCommand = [
"PCommand",
"QCommand",
"XCommand"
];
case actionTypes.UPDATE_COMMAND_WORKFLOW:
// Deep clone of current state
const temp = cloneDeep(state);
// Draged command state
const dragCard = temp[action.dragIndex];
const tempDragCard = cloneDeep(dragCard);
// hovered command state
const hoverCard = temp[action.hoverIndex];
const tempHoverCard = cloneDeep(hoverCard);
//condition one
if (
action.hoverIndex === 0 &&
notFirstCommand.includes(dragCard.class_name)
) {
return temp;
}
//condition 2
// command drag from top to bottom
if (action.hoverIndex > action.dragIndex) {
const td = update(temp, {
$splice: [
[action.dragIndex, 1],
[action.hoverIndex, 0, tempDragCard],
],
});
let startIndex;
let endconditionIndex;
// for nested commands
const nestedConditionHandler = (i, currState) => {
startIndex = i + 1;
endconditionIndex = td.indexOf(
td.find((cur) => cmdPair[currState.class_name] === cur.class_name)
);
while (startIndex < endconditionIndex) {
const tempTd = td[startIndex];
console.log(tempTd);
console.log(currState.indent + 1);
td[startIndex].indent = currState.indent +1
td[startIndex].parentId = currState.parentId
if (cmdArray.includes(td[startIndex].class_name)) {
nestedConditionHandler(startIndex, td[startIndex]);
}
startIndex += 1;
}
};
if (
dragCard.class_name === "ECommand" ||
dragCard.class_name === "EfCommand"
) {
for (let i = action.dragIndex; i < action.hoverIndex; i++) {
td[i].indent = dragCard.indent + 1;
td[i].parentId = dragCard.parentId;
}
} else {
for (let i = action.dragIndex; i < action.hoverIndex; i++) {
td[i].indent = dragCard.indent;
td[i].parentId = dragCard.parentId;
if (cmdArray.includes(td[i].class_name)) {
nestedConditionHandler(i, td[i]);
}
}
}
return td;
}
// command drag from bottom to top , next condition