Anemone Output disappear after finish

Hi all, I do not remember what I did nut all of a sudden when my loop ended, the data in my loop also disappear, does anyone know how to to solve this problem?

Problem (40.6 KB)

Use record data, and choose the last branch.
To join all squares use Region union component

Problem (41.5 KB)

Thank you for your reply, actually, I have tried that but although it does help solve my problem, the time it takes to run the loop significantly increases so I was wondering if there is any way which does not significantly increase my run time?

But this is not your question in the first post

yes, your solution works but I was wondering if there are any other more efficient solutions that to my problem? Cause my laptop is not powerful enough to run it once I hit past 300 on my counter.