Swift progressBar filling on every cell-click - swift

Question

Each of my cells in tableView has its own progressBar which is being filled in cellForRowAt method and it works fine.
My problem is whenever I select a cell, it's progress bar refreshes filling.
Does anyone have an idea why and how to prevent it? I think didSelectRowAt method is not a reason because that method does nothing with the progressBar.
Method for filling progressBar:
func updateProgressBar(_ cell: TestTableViewCell, level: String) {
let cellCards = Float64(self.getNumberOfCardsForLevel(level: level))!
let totalCards = Float64(self.totalCards())!
delay(0.3) {
cell.cellProgress.setProgress(Float(cellCards / totalCards), animated: true)
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "TestTableViewCell", for: indexPath) as! TestTableViewCell
cell.accessoryType = .disclosureIndicator;
cell.cellProgress.progress = 0
cell.cellTitle.text = "Test"
cell.numOfCardsInCell.text = getNumberOfCardsForLevel(level: "1")
updateProgressBar(cell, level: "1")
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.tableView.indexPathsForSelectedRows?.forEach { index in
if(self.cellSelectedImage[indexPath.row] == UIImage(named: "imageTwo") ) {
tableView.deselectRow(at: indexPath, animated: false)
self.cellSelectedImage[indexPath.row] = UIImage(named: "imageOne")
}
else {
print("Selected row -> \(index.row)")
if self.cellSelectedImage[indexPath.row] == UIImage(named: "imageTwo") {
self.cellSelectedImage[indexPath.row] = UIImage(named: "imageOne")
}
}
}
tableView.reloadRows(at: [indexPath], with: .automatic)
}