Back again after playtesting to report bugs and give my thoughts like I did for your GC1939.
I went ahead and played though 1939 again just to test in the import function worked (it did) so let's start there:
1939 Bugs
A1. The Battleship you are given at Danzig for capturing the harbor is still a Core Unit. More amusing than problematic, I do remember you replying last time about wanting to fix that though.
A2.The flag at Wyszogrod is still cutoff by the map edge.
A3. Not sure if this happened last time in hindsight, but I noticed this time that while Piatek starts out saying it's giving you 5 Commendations at the start, which you will lose if you fail the Bonus Objective, the game doesn't seem to actually give these Commendations to you and gives you 1 Commendation at the end of the Scenario if you complete the Bonus Objective instead. Which is a shame because if my calculations are correct that would give the player enough Commendations to get every Commendation Reward available except for the (mostly worthless) Polish 155mm Artillery Reward at the beginning.
A4. The Bonus Objective for capturing the airfields at Oslo still doesn't work. Same error message I posted last time I believe.
A5. You get Commendations for the Objectives to sink HMS Glorious and 8 Royal Navy Ships at Narvik despite being Main Objectives and the fact that as the last Scenario their is nothing to spend them on (Unless the Galland Event is supposed to be able to fire mid-Scenario if you get enough Commendations so you can still get him if you don't have enough at the start?).
1940 Bugs
B1.Judging by the tally for completing the Bonus Objective, you start 1940 with 3 Commendations for free. I'm leaning towards this not actually being a bug because otherwise it would be impossible to get enough Commendations for the Event to get von Bonde, but I figured I's mention it.
B2. Albert Canal has an Airfield cut in half by the map edge with an AA gun on it (More on that AA gun in Misc).
B3. Reinforcement waves never spawned in Wassigny.
B4. Upon completing the Main Objective of Wassigny, I was awarded 2 Commendations. This I'm more suspicious off than the free ones at the Campaign start, but for all I know could still be intentional.
Starting at Maubeuge and in every Scenario till Maginot, I noticed a formatting error with Main and Bonus Objectives. All the Objectives worked, they just had the text lines messed up a bit.
B5. I really hope this 1500 Entrenchment Matilda II at Arras is a bug and not a feature. 
B6. At Reims I had an error message pop up every time I captured a flag. After checking the files to see what Caches were in the Scenario since the message seemed to involve them, I can confirm the Char 2C cache worked (although eh error message still popped up when taking the flag) but the Panhard Cache did not.
Misc. Bugs
C1. Quite a few maps have a couple of units caught inside the map edge like the AA gun on the Albert Canal Airfield I mentioned earlier (earliest I noticed were some destroyers in Narvik). I didn't initially consider this a problem at first because they were perfectly capable of moving out of the border.
Until they started teleporting.
My example comes from the Stonne Scenario where a Cavalry somehow is capable from moving from the west map edge to the eastern side in a single turn to capture a Victory Hex.
Before:
After:
C2. Less a bug and more of an issue with how the game evolved from Panzer Corps 1 to 2. On Scenarios where Auxiliary and Enemy Aircraft start positioned away from an Airfield, it might be a good idea to move them to a nearby Airfield and assign them there, because otherwise they waste their first turn assigning themselves to the nearest Airfield.
Other Thoughts
The good news is that with the possible exception of the teleporting border units, 1500 Entrenchment Matilda II, and maybe the missing 5 Commendations at Piatek none of these bugs would be what I consider gamebreaking, and even those can be accounted for if you are aware of them. Leave a rear guard force during the first few turns to catch any teleporters, skip the less significant Commendation Rewards so you have enough for the more important ones in the 1939 Campaign, and hope the Matilda moves/use Console Commands on the Matilda.
I did happily notice that with 1940 you made it so that if you complete every Bonus Objective players will have enough Points for every Reward (Although is those 5 total points I brought up in bugs weren't intentional after all that would change quickly.). I definitely prefer this method, and your new way of making players choose is much better in my opinion.
Speaking of, making it so some Commendation Rewards make you choose between 2 Rewards is a very clever way to add some extra replayability and customization to your Army, even if a part of me does mourn losing the shiny I don't pick.
Can't wait for the next entry!
