When accessing CABI reports on internal cabi with UIM 20.1 and CABI 4.20 there may be intermittent errors seen, indicating "request header too large" and/or "HTTP 400" as in the following example:
Release : 20.1
Component : CABI
This is resolved by wasp 20.10HF1 or later. Current hotfixes are available at the UIM Hotfix Index.