[Nexus 7 (2013) Android Development] rlw6534:
I tried Facebook Messenger Video calling and it worked just fine. I do have Google Camera 2.7.010 installed (which is the GoogleCameraLegacy in GAPPS Stock)... you can find it on apkmirror if you don't want to fiddle with GAPPS custom configuration. Not sure if you need it or not but the stock camera does not work AFAIK and this one does... Here is the .gapps-config I used with Stock. Everything else I installed from Google Play. Note I was going for a Pixel look and function ;) :

Include

# Pico+
# DialerFramework # Install Dialer Framework
# CalSync # Install Google Calendar Sync (except if Google Calendar is being installed)
# GoogleTTS # Install Google Text-to-Speech (Micro+ on 5.0-, Pico+ on 6.0+)
PackageInstallerGoogle # Install Google Package Installer

# Nano+
# FaceDetect # Install FaceUnlock
# FaceUnlock # Install FaceUnlock
Search # Install Google Search (including includes Hotword, excluding excludes GoogleNow and PixelLauncher)
# Speech # Install Offline Speech Files
# Hotword # Install OK Google Hotword Enrollment

# Micro+
# Gmail # Install Gmail
# CalendarGoogle # Install Google Calendar
# ExchangeGoogle # Install Google Exchange Services
# GoogleNow # Install Google Now Launcher (requires Search)
# GoogleTTS # Install Google Text-to-Speech (Micro+ on 5.0-, Pico+ on 6.0+)

# Mini+
# CalculatorGoogle # Install Google Calculator
# ClockGoogle # Install Google Clock
# Maps # Install Google Maps
# TagGoogle # Install Google NFC Tags
# Photos # Install Google Photos
# GooglePlus # Install Google+
# Hangouts # Install Hangouts
# YouTube # Install YouTube

# Full+
# Chrome # Install Google Chrome Browser
# CloudPrint # Install Google Cloud Print
# Docs # Install Google Docs
# Drive # Install Google Drive
# Fitness # Install Google Fit
# Keep # Install Google Keep
# NewsWidget # Install Google News & Weather
# Books # Install Google Play Books
# PlayGames # Install Google Play Games
# Movies # Install Google Play Movies & TV
# Music # Install Google Play Music
# NewsStand # Install Google Play Newsstand
# Sheets # Install Google Sheets
# Slides # Install Google Slides
# Talkback # Install Google TalkBack

# Stock+
CameraGoogle # Install Google Camera
ContactsGoogle # Install Google Contacts
# DialerGoogle # Install Google Dialer
KeyboardGoogle # Install Google Keyboard
# Messenger # Install Google Messenger (except on tablet devices)
PixelIcons # Install Google Pixel Icons
# StorageManagerGoogle # Install Google Storage Manager
# VRService # Install Google VR Services
WebViewGoogle # Install Google Webview
PixelLauncher # Install Pixel Launcher (requires Search and Wallpapers)
# PrintServiceGoogle # Install Print Service Recommendation Service
Wallpapers # Install Wallpapers

# Super+
# AndroidPay # Install Android Pay
# DMAgent # Install Google Apps Device Policy
# GCS # Install Google Connectivity Services (excluding also excludes ProjectFi)
# Earth # Install Google Earth
# Indic # Install Google Indic Keyboard
# Japanese # Install Google Japanese Input
# Korean # Install Google Korean Input
# Pinyin # Install Google Pinyin Input
# Street # Install Google Street View
# Translate # Install Google Translate
# Zhuyin # Install Google Zhuyin Input
# ProjectFi # Install Project Fi by Google

# Remove apps (uncomment a line to remove the app)
CMAccount # Remove CM Account
CMAudioFX # Remove CM AudioFX
CMBugReport # Remove CM Bug Report
CMFileManager # Remove CM File Manager
CMMusic # Remove CM Music
CMScreenCast # Remove CM ScreenCast
CMSetupWizard # Remove CM Setup Wizard (see Notes for CMSetupWizard)
CMUpdater # Remove CM Updater
CMWallpapers # Remove CM Wallpapers
CMWeatherProvider # Remove CM Weather Underground

DashClock # Remove DashClock Widget (found in certain ROMs)
Hexo # Remove Hexo Libre CM Theme
LRecorder # Remove LineageOS Recorder
LSetupWizard # Remove LineageOS Setup Wizard
LUpdater # Remove LineageOS Updater
Logcat # Remove OmniROM MatLog
OmniSwitch # Remove OmniSwitch recent apps switcher replacement

BasicDreams # Remove Basic Dreams Wallpaper
Galaxy # Remove Galaxy (also known as BlackHole) Wallpaper
HoloSpiral # Remove Holo Spiral Wallpaper
NoiseField # Remove Noise Field Wallpaper
Phasebeam # Remove Phasebeam Wallpaper
PhotoPhase # Remove Photo Phase Wallpaper
PhotoTable # Remove Photo Table Wallpaper

Browser # Remove Stock Browser
CalculatorStock # Remove Stock Calculator (automatically removed when Google Calculator is installed)
CalendarStock # Remove Stock Calendar (automatically removed when Google Calendar is installed)
CameraStock # Remove Stock Camera (Including CAF's camera application, Snap)
ClockStock # Remove Stock Desk Clock (automatically removed when Google Clock is installed)
Email # Remove Stock Email Client
ExchangeStock # Remove Stock Exchange Services (automatically removed when Google Exchange Services is installed)
FMRadio # Remove Stock FM Radio (not found on all devices or ROMs)
Gallery # Remove Stock Gallery (automatically removed when Google Photos is installed)
KeyboardStock # Remove Stock Keyboard (automatically removed when Google Keyboard is installed)
Launcher # Remove Stock Launcher(s)
LiveWallpapers # Remove Stock Live Wallpapers
LockClock # Remove Stock Lockscreen Clock Widget
MMS # Remove Stock SMS (automatically removed if Android Messages is installed)
MzFileManager # Remove Stock FlymeOS File Manager
MzPay # Remove Stock FlymeOS Pay system (this service is only available in China)
MzSetupWizard # Remove Stock FlymeOS SetupWizard
MzUpdater # Remove Stock FlymeOS Updater
MzWeather # Remove Stock FlymeOS Weather (this service is only available in China)
# PicoTTS # Remove Stock PicoTTS
PrintServiceStock # Remove Stock Print Service Recommendation Service (automatically removed when Google Print Service Recommendation Service is installed)
SimToolKit # Remove Stock SimToolKit
SoundRecorder # Remove Stock Sound Recorder
StorageManagerStock # Remove Stock Storage Manager (automatically removed when Google Storage Manager is installed)
Studio # Remove Stock Movie Studio
SykoPath # Remove SykoPath Layers Manager (found in certain ROMs)
TagStock # Remove Stock NFC Tags (automatically removed when Google NFC Tags is installed)
Terminal # Remove Stock Terminal
Themes # Remove Stock Theme Engine (will break the Settings Entry and can cause unexpected reboots on some ROMs)
VisualizationWallpapers # Remove Stock Visualization Wallpapers
WhisperPush # Remove Stock WhisperPush support

GoogleAssistant
Override

Rick

---------- Post added at 01:29 PM ---------- Previous post was at 01:19 PM ----------

Youtube didn't work the first time I tried but I just checked and it is working now. Not sure what I did, but I do have Youtube Music and Youtube TV installed as well. All 3 are working.for me... Maybe try a reboot or install the other 2 apps to get you logged in, that's where it seemed to hang...

Rick