'Price in cart' condition in shopping cart price rule is not working properly

[GordonMak]

Preconditions (*)

1. magento 2.3.4 (Reproducible on 2.4-develop)
2. a product has tier price

Steps to reproduce (*)

1. setup a shipping cart price rule for the product to apply fixed amount discount for tiered price.
2. apply a "price in cart is...(equal to the tiered) price" condition to cart item under "Apply the rule only to cart items matching the following conditions (leave blank for all items).."

Expected result (*)

1. Correct discount amount can be applied to the tired price
2. It is working well in Magento 2.3.3.

Actual result (*)

1. After upgraded to Magento 2.3.4
2. System seems cannot check "price in cart" condition; may apply discount out of the "price in cart" condition; may apply wrong discount amount...

Additional info from Engcom

Steps to reproduce:

1. Setup cart price rule with the following conditions
   
2. Go to frontend and add corresponding products to the cart
   
3. Proceed to checkout

Expected result
Correct discount amount applied

Actual result:
Discount not applied, 'Price in cart' condition doesn't work

[m2-assistant]

Hi @GordonMak. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento give me 2.4-develop instance - upcoming 2.4.x release

For more details, please, review the Magento Contributor Assistant documentation.

@GordonMak do you confirm that you were able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

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[m2-assistant]

Hi @engcom-Delta. Thank you for working on this issue.
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[engcom-Delta]

Hello @
Could you provide more details for reproduce this issue?
Please add screenshots with settings of a cart price rule.

Thank you!

[zakarque]

I'm using a 2.3.3 and having the same issue with the condition "Price in Cart" as well.