Coverage Upper limit for Supplemental changing to previous elections 5000 in nextt Life event?

Summary:

Content (please ensure you mask any confidential information):

We have a Supplemental Life insurance with EOI certification.

requirements

Lower limit -0

Upper Limit -750000

Increment -10000

EOI to be triggered - at 350,000 or 3 times annual salary which ever is lowest

All of them above have been configured except EOI which has a fast formula.

Now the clients have reported a strange issue which is replicable in Dev.

If they choose 350000 and then approve the EOI, and then add a new Life event, and go to Supplemental Life, it shows the range as 0 to 355,000. If I choose 250,000 then it shows as 255,000