We use ${TMP}\Jenkins\${BUILD_TAG}_inject.inp to point to a file in the "Inject environment variables" and "Parameters from properties file". Eg the path ${TMP} is absolute.

This has always worked and the "Inject environment variables" still works. But after upgrading to Jenkins 2.164.1 "Parameters from properties file" reports an this error:
[EnvInject] - Injecting environment variables from a build step.
[EnvInject] - Injecting as environment variables the properties file path 'c:/temp/Jenkins/jenkins- Build Installer 1.6-82_inject.inp'
[EnvInject] - Variables injected successfully.
ERROR: Build step failed with exception
java.lang.IllegalArgumentException: Only a relative path is supported, the given path is absolute: c:/temp/Jenkins/jenkins Build Installer 1.6-82_inject.inp/