Dates of type "Other" won't get exported nor imported

[cubernetes]

Environment: Android 13 OxygenOS 13.0 (OnePlus 10 Pro 5G) Simple Contact Pro v6.22.0

Steps to reproduce:

• Create a new test contact and enter a date field of type "Other"
• Export that contact using the share function, it will be exported as a vcf
• Delete the test contact
• Import the vcf

Actual result:

• The date is gone (even after exporting it after the import, it's not in the vcf anymore)

Expected result:

• The date of type "Other" should be present

Addendum: Manually adding a line OTHER:20230120 to the vcf doesn't help. It won't import that line