Tank Destroyer Showcase Bug - Unable to complete

[Bobrus 29]

Which causes mission failure. When I always approaching point Yukon, Papa Beas says that Zulu didnt make it and we have to retreat, but then Zulu informs about attack near Sofia. Mission still fails.

According to the on screen message, this may be a scripting error.

https://imgur.com/a/bcLLBmK

[Bobrus 29]

Tank and Infantry showcases has "BIS_fnc_establishingShot" error message too. Its probably bigger problem. 

[Wiki 1558]

retried the mission, no pb for me.

do you have any mod loaded?