wasp-20.1.0-hf1 which contains a new tomcat version/jar files that need to be copied into place as per the included directions in the zip release notes.
Note that the wasp package is contained within the zip so you have to extract it first. The release notes are in the zip as well but here they are...
Release Date: 3 June 2020
Applicable for: UIM 20.1.0
This hotfix addresses the following:
Probe configuration or template changes will not save when accessing and using the Admin Console via HTTPS.
Steps to apply the fix:
1. Deactivate wasp probe in UIM Server Robot.
2. In UIM Server installation location, delete 'work' folder from the path \probes\service\wasp
3. Take a backup of of the following jars from the path \probes\service\wasp\lib and delete those jars from the directory.
4. Unzip wasp-20.1.0-hf1.zip and copy all of the jar files to the location \probes\service\wasp\lib
6. Activate the wasp probe.