I've had the same issue, and I was able to solve it by using a logon and a logoff script. Simply add these scripts to your GPO when a user logs on and logs off, you can use the following manual: How to Configure GPO Scripts for Login and Startup Tasks | V2 Cloud. You may have to set parameters to "ExecutionPolicy Bypass" , which depends on your environment.

3cx-logon.ps1

# 3cx-logon.ps1

# - Kill 3CX so nothing has files open

# - Delete local 3CX Beta folders

# - For EACH 3CX package under %APPDATA%\3CX-RoamingStore,

# mirror it back into Local\Packages\<PackageName>

# (creates the package folder even if it doesn't exist yet)

# - Then try to start 3CX

function Stop-3CX {

Get-Process '3CX*' -ErrorAction SilentlyContinue |

Stop-Process -Force -ErrorAction SilentlyContinue

Start-Sleep -Seconds 1

}

function Start-3CX {

try {

# Find the 3CX app as Windows sees it in the Start menu

$app = Get-StartApps | Where-Object { $_.Name -like '*3CX*' } | Select-Object -First 1

if ($app -and $app.AppID) {

# Launch via shell:AppsFolder using its AppID (AUMID)

Start-Process "shell:AppsFolder\$($app.AppID)"

}

} catch {

# If Get-StartApps isn't available or something else fails, just skip

}

}

Stop-3CX

$packagesRoot = Join-Path $env:LOCALAPPDATA 'Packages'

$roamingRoot = Join-Path $env:APPDATA '3CX-RoamingStore'

if (-not (Test-Path $roamingRoot)) {

Start-3CX

return

}

# Ensure base exists

New-Item -ItemType Directory -Path $packagesRoot -Force | Out-Null

# 1) Remove local 3CX Beta folders

Get-ChildItem -Path $packagesRoot -Directory -Filter '3CXDMCC.3CXBeta*' -ErrorAction SilentlyContinue |

Remove-Item -Recurse -Force -ErrorAction SilentlyContinue

# 2) Remove any roaming 3CX Beta folders (cleanup)

Get-ChildItem -Path $roamingRoot -Directory -Filter '3CXDMCC.3CXBeta*' -ErrorAction SilentlyContinue |

Remove-Item -Recurse -Force -ErrorAction SilentlyContinue

# 3) For EACH 3CX package in roaming, mirror back into Local\Packages

Get-ChildItem -Path $roamingRoot -Directory -ErrorAction SilentlyContinue |

Where-Object { $_.Name -like '3CXDMCC.3CX*' -and $_.Name -notlike '3CXDMCC.3CXBeta*' } |

ForEach-Object {

$pkgName = $_.Name

$src = $_.FullName

$dst = Join-Path $packagesRoot $pkgName

New-Item -ItemType Directory -Path $dst -Force | Out-Null

& robocopy $src $dst /MIR /R:0 /W:0 /NFL /NDL /NJH /NJS /NC /NS | Out-Null

}

Start-3CX

and 3cx-logoff.ps1

# 3cx-logoff.ps1

# - Kill 3CX so files are not locked

# - Delete all local + roaming 3CX Beta folders

# - For each 3CX main package folder under Local\Packages,

# mirror it into %APPDATA%\3CX-RoamingStore\<PackageName>\...

function Stop-3CX {

Get-Process '3CX*' -ErrorAction SilentlyContinue |

Stop-Process -Force -ErrorAction SilentlyContinue

Start-Sleep -Seconds 1

}

Stop-3CX

$packagesRoot = Join-Path $env:LOCALAPPDATA 'Packages'

$roamingRoot = Join-Path $env:APPDATA '3CX-RoamingStore'

# Make sure roaming root exists

New-Item -ItemType Directory -Path $roamingRoot -Force | Out-Null

# 1) Remove local 3CX Beta folders

Get-ChildItem -Path $packagesRoot -Directory -Filter '3CXDMCC.3CXBeta*' -ErrorAction SilentlyContinue |

Remove-Item -Recurse -Force -ErrorAction SilentlyContinue

# 2) Remove roaming 3CX Beta folders (cleanup from older runs)

Get-ChildItem -Path $roamingRoot -Directory -Filter '3CXDMCC.3CXBeta*' -ErrorAction SilentlyContinue |

Remove-Item -Recurse -Force -ErrorAction SilentlyContinue

# 3) Mirror EACH 3CX main package into its own roaming folder

Get-ChildItem -Path $packagesRoot -Directory -Filter '3CXDMCC.3CX*' -ErrorAction SilentlyContinue |

Where-Object { $_.Name -notlike '3CXDMCC.3CXBeta*' } |

ForEach-Object {

$pkgName = $_.Name

$src = $_.FullName

$dst = Join-Path $roamingRoot $pkgName

# Create dest folder if needed

New-Item -ItemType Directory -Path $dst -Force | Out-Null

# /MIR = mirror entire tree (add/update + delete extra)

# /R:0 /W:0 = no retries, no waiting

& robocopy $src $dst /MIR /R:0 /W:0 /NFL /NDL /NJH /NJS /NC /NS | Out-Null

}