[REPORTED]Stack traceback on dedicated server when client occupies MiG-29G

There is stack traceback everytime joins plane:

2019-12-14 15:37:10.795 INFO    NET: player 2 occupied unit 1
2019-12-14 15:37:12.764 INFO    Scripting: event:type=takeoff,initiatorPilotName=danvac,initiator=Pilot #001,place=Senaki-Kolkhi,t=28812.766,placeDisplayName=Senaki-Kolkhi,initiatorMissionID=1,
2019-12-14 15:37:12.808 ALERT   WRADIO: Error in wMessage::buildSpeech(), event = wMsgATCClearedForEngineStartUp: [string "./Sounds/Speech/common.lua"]:2496: attempt to index local 'roleData' (a nil value)
stack traceback:
[C]: ?
[string "./Sounds/Speech/common.lua"]:2496: in function 'make'
[string "Sounds/Speech/speech.lua"]:140: in function <[string "Sounds/Speech/speech.lua"]:119>
2019-12-14 15:37:12.816 INFO    Scripting: event:type=land,initiatorPilotName=danvac,initiator=Pilot #001,place=Senaki-Kolkhi,t=28812.818,placeDisplayName=Senaki-Kolkhi,initiatorMissionID=1,

it can be fixed by adding check if roleData is not nil inside:

--Accent
if roleData.accents ~= nil then
	local messageAccent = accentTable[messageLanguage][country] or accent.USA
	result.directory = result.directory..base.country.name[messageAccent]..'/'
	roleData = roleData.accents[messageAccent]
end

if roleData ~= nil and roleData.accents ~= nil then

Reproducing mission and logs attached.

dcs.zip

Stack traceback is in log on dedicated server and not on client. I can provide track from server later..

Dedicated server is installed using https://www.digitalcombatsimulator.com/en/downloads/world/server_beta/

I will check if it happens too when I start dedicated server through client installation.