Groovy for loop not incrementing correctly - for-loop

Question

I am writing a jenkins pipeline with what is a mixture of declarative and scripted syntax. I want to loop 4 times to create 4 parallel stages in the pipeline. I want to capture what loop I'm on, and print that at the beggining of each step:
def parallelStages = [:]
int cypressRunners = 4
for (int i = 1; i <= cypressRunners; i++) {
parallelStages["Cypress ${i}"] = {
stage("Cypress ${i}") {
node("cypress-runner-agent") {
echo "------------------ Cypress ${i} Stage ------------------"
// more steps
}
}
}
}
In the jenkins log, I always get a printout of
------------------ Runner 5 Stage ------------------
Even though in the left side, where the stage names are listed, I get the correctly indexed names of Cypress 1, Cypress 2, Cypress 3, Cypress 4, like this:
I am not a java or groovy developer, but this seems like a pretty simple for loop in any language. Is there some aspect of async, or closures, that I am missing here? Tons of questions exist about for loops not working as expected, but none in a jenkins-groovy-pipeline context, and certainly not for this scenario.

Answer 1

I figured out a solution, rather than delete I will post an answer in the event that it may help someone else in the future. My issue was similar to Iterate and print content of groovy closures, though not exactly. With help from that question, I just capture the current value of the index within the closure of the for loop and used that:
for (int i = 1; i <= cypressRunners; i++) {
def j = i // < ------- capture value within closure
parallelStages["Cypress ${j}"] = {
stage("Cypress ${j}") {
node("cypress-runner-agent") {
echo "------------------ Cypress ${j} Stage ------------------"
// more steps
}
}
}
}