I keep seeing the same variant and can’t get assigned to another one

Created by Donald Ng, Modified on Sun, 4 Jan at 11:50 PM by Donald Ng

When you enter an experiment, you are assigned to a variant. This assignment is intentionally persistent to ensure accurate results. Because of this, you will continue seeing the same variant during the session.


Refreshing the page, manually visiting another variant’s URL, or changing traffic allocation will not change this assignment for an existing visitor.


Why this happens

Variant assignment is stored for the visitor and reused throughout the session (and sometimes across visits). All activity, including conversions, is attributed to the variant you were first assigned to.


Traffic allocation changes only affect new visitors. Existing visitors will continue seeing the variant they were originally bucketed into.


This behavior is expected and not a tracking issue.


How to get re-bucketed

To be assigned again, you must reset your current assignment and re-enter the experiment.

You do this by adding ?mida-refresh to the end of the experiment’s entry URL.


Here are some examples.


If your entry URL is:
https://example.com/page


Open this instead:
https://example.com/page?mida-refresh


If your entry URL already has parameters, such as:
https://example.com/page?source=ad


Open this instead:
https://example.com/page?source=ad&mida-refresh


Once the page loads, remove ?mida-refresh from the URL and reload the page normally.


The experiment will then assign you again.


Assignment is random, so you may need to repeat this step to see a different variant.


Alternative ways to re-bucket

You can also reset your assignment by:

  • Using an incognito or private window

  • Switching browsers or devices

  • Clearing cookies or local storage


Important notes

Re-bucketing does not guarantee a specific variant. It only allows the experiment to assign you again. Persistent assignment is required for experiment accuracy and is expected behavior, even when traffic allocation is set to 100% for a variant.

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