'SNS subscriptions are not displayed in SNS topic details page

Let's say I have a SNS created a topic name topic-1 and a queue my-lambda-queue using CDK (python) which subscribe to topic-1. After some time the messages stop getting delivered to my-lambda-queue. If the remove the subscriptions and try adding them again then messages start to deliver.

Upon investigation I found that, the SNS topic topic-1 details page on AWS console does not show the subscription for my-lambda-queue but on the SQS details page of my-lambda-queue the subscription is shown.

This is strange, can someone please guide me where I'm doing wrong?



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