Where has my Para Unit gone ?

[LuckyJim1006]

Playing the Germans in the Polish campaign tutorial. Three turns in.
I dropped the Para division on Warsaw after softening the Polish Corp by air strikes. The unit dropped successfully and suffered no casualties. I had a mixed force of armour and infantry around Warsaw but conducted no attacks save the airborne assault. The Polish 2-3 Inf Corp disappeared.
I leave the Para unit in Warsaw and conduct no other attacks around the city.
Then I hit the End Turn button.
Scroll back to Warsaw and my Para unit has gone. The Polish Corps that was in the city is now some 3 hexes to the South East.
I include some Report screens both before and after the End Turn. As you can see my losses are the same before and after, suggesting a bug.
My preferences are set to ‘Wait for User Click’ on AI Combat results so I don’t miss anything.
Here are some screenshots.

Around Warsaw pre-landing

[LuckyJim1006]

Para Selected

[LuckyJim1006]

Post Landing Success

[LuckyJim1006]

Next Turn - where did the para go ?

[LuckyJim1006]

Finally, here are my Reports for the Turn before and turn after the para drop.

[comrade]

It's a bug. You should not be able to land on a hex occupied by enemy unit. It will be fixed.

[LuckyJim1006]

Well that reply took the wind out of my sails.

I spent ages doing the screenshots. Great game though.

Chris