Magento 2.4.2 bug with equal currency rates showing wrong currency symbol in cart summary

[swisspace21]

Preconditions and environment

• Magento version 2.4.2 - no changes or extensions - no p1 or p2

Our customer set the currency rate CHF & EUR 1:1, because he want the same rate for those currencies
-> Stores -> Currency Rates -> CHF 1.0000 / EUR 1.0000

When switching currencies in the cart - the cart summary sometimes is showing the wrong currency symbol
We found this bug in Magento 2.4.2 and did not find any solution / fix or infos about it.

https://prnt.sc/oBH5zGaGnO5x

The bug only happens, when currencies set 1:1

Steps to reproduce

Storefront

1. Add a product to the cart
2. Go to the cart
3. Change the currency to EUR
4. Change the currency to CHF
5. Repeat switching currency
6. Cart Summary shows wrong currency symbol / rate -> https://prnt.sc/oBH5zGaGnO5x

Backend

1. Add a product
2. Add a 2nd currency
3. Stores -> Currency Rates -> set the currencies equal: 1.0000 : 1.0000

Expected result

When switching the currency in the cart - the cart summary should show the correct currency.

Actual result

The cart summary does show a wrong currency / currency symbol.

https://prnt.sc/oBH5zGaGnO5x

Additional information

We installed a totally new Magento 2.4.2 without any extension to be sure the bug is a magento 2.4.2 bug.
We did not test this bug in newer Magento Versions and don't know if the bug is still existing in the current Magento version.

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @swisspace21. Thank you for your report.
To speed up processing of this issue, make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, Add a comment to the issue:

• @magento give me 2.4-develop instance - upcoming 2.4.x release
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[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

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[engcom-Bravo]

Hi @swisspace21,

Thank you for reporting and collaboration.

Verified the issue on Magento 2.4-develop instance and the issue is not reproducible.Kindly refer the screenshots.

Steps to reproduce

Storefront

• Add a product to the cart
• Go to the cart
• Change the currency to EUR
• Change the currency to CHF
• Repeat switching currency
• Cart Summary shows wrong currency symbol / rate

Backend

• Add a product
• Add a 2nd currency
• Stores -> Currency Rates -> set the currencies equal: 1.0000 : 1.0000

While switching the currency in the cart and the cart is showing correct currency symbol.

Kindly recheck the behaviour on Magento 2.4-develop instance and elaborate steps to reproduce if the issue is still reproducible and please let us know if we are missing anything.

Thanks.

[swisspace21]

Hi @engcom-Bravo

We have tested the bug up to the current magento version 2.4.6-p2, now.
The bug ist still existing in this version.
Is there any difference to the 2.4-develop instance?

You need to repeat the process of switching the currencies in the frontend until the problem occurs.

It only happens, when the currency rates are set to 1.0000 : 1.0000.
When the currency rates differ - the problem does not happen.

I attach screenshots of the recent test with magento 2.4.6-p2.

[engcom-Bravo]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @engcom-Bravo. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @engcom-Bravo, here is your Magento Instance: https://8d5e81c2ec317e9fd85ffe23e854f8c7.instances-prod.magento-community.engineering
Admin access: https://8d5e81c2ec317e9fd85ffe23e854f8c7.instances-prod.magento-community.engineering/admin_179c
Login: f5a555a2
Password: 73b581b3aa7d

[swisspace21]

Hi . thank you - on 2.4-develop instance it is exactly the same problem.

Simple to reproduce.

Just put some items to the cart - go to the cart and switch currency on the upper right some time.
When the currency rate in the backend ist set 1:1 the problem is happening. If not all is running well.

https://8d5e81c2ec317e9fd85ffe23e854f8c7.instances-prod.magento-community.engineering/checkout/cart/

[engcom-Bravo]

Hi @swisspace21,

Thanks for your update.

Verified the issue on Magento 2.4-develop instance and the issue is reproducible.Kindly refer the screenshots.

Steps to reproduce

Storefront

Add a product to the cart
Go to the cart
Change the currency to EUR
Change the currency to CHF
Repeat switching currency
Cart Summary shows wrong currency symbol / rate
Backend

Add a product
Add a 2nd currency
Stores -> Currency Rates -> set the currencies equal: 1.0000 : 1.0000

While switching the currency it is showing wrong currency in cart summary.it is not happening all the times.

Hence Confirming the issue.

Thanks.