Steps to reproduce:

1. Update Agent from v 5.2.2 to 5.2.3
2. Create UserParameter =CP.version, powershell.exe -NoProfile -ExecutionPolicy Bypass -File c:\Zabbix\Scripts\cp.ps1
3. cp.ps1 = (Get-ItemPropertyValue HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\"{407E5BA7-6406-40BF-A4DC-3654B8F584C1}" -Name DisplayVersion)
4. Create Item where key = cp.version
5.  Test Item

Result:
Get-ItemPropertyValue : Cannot find path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{407E5BA7-6406-40BF
-A4DC-3654B8F584C1}' because it does not exist.
At C:\Zabbix\Scripts\cryptopro.ps1:1 char:1
+ Get-ItemPropertyValue HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion ... **

Expected:
Value "4.0.9963" located in requested registry path

Some VM with non-upgraded Agent (5.2.2) give correct result (value 4.0.9963)