Multi run plugin broken with

[mdwheaton]

Individual runtime configs run fine, but no longer run in the plugin with Could not find or load main class error.
Version:
IntelliJ IDEA 2023.2 (Community Edition)
Build #IC-232.8660.185, built on July 26, 2023
Runtime version: 17.0.7+7-b1000.6 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10.0
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 16
Registry:
ide.intellij.laf.enable.animation=true
ide.balloon.shadow.size=0
scala.erase.compiler.process.jdk.once=false

Non-Bundled Plugins:
com.khmelyuk.multirun (1.13)
com.vecheslav.darculaDarkerTheme (1.2.0)
com.tylerthrailkill.intellij.solarized (3.0.0)
Batch Scripts Support (1.0.13)
com.jetbrains.gerryPurpleTheme (2023.1.55)
com.jooas.themes (0.8)
Eclipse theme (1.0)
com.jetbrains.packagesearch.intellij-plugin (232.8660.142)
idea.plugin.protoeditor (232.8660.88)
color.scheme.Eclipse - Dark (1.0)
com.vermouthx.idea (1.14.3)
org.intellij.scala (2023.2.17)
git-extended-update-index (0.1.3)

Kotlin: 232-1.9.0-IJ8660.185

[mdwheaton]

I've been playing with it a while.
Runtime configs that do NOT have a VM_PARAMETERS overriding the default classpath seem to work fine.
It appears multirun is ignoring or breaking the VM_PARAMETERS, or the -cp argument within.
Here's the runtime config I'm using in the multi-run.

  <configuration default="false" name="RunConfigName" type="Application" factoryName="Application">
    <envs>
      <env name="LOCAL" value="TRUE" />
    </envs>
    <option name="MAIN_CLASS_NAME" value="com.blah.blah.LocalHarness" />
    <module name="blah" />
    <option name="VM_PARAMETERS" value="-DSINGLETON=true -cp $ProjectFileDir$\src\test\resources\blah;$Classpath$" />
    <method v="2">
      <option name="Make" enabled="true" />
    </method>
  </configuration>
</component>

[mdwheaton]

Other VM_PARAMETERS options are respected, when supplying -cp or -classpath it blows up.