And yes, the base had engineers in combat mode with supply and they were working for the whole time. Not getting the notification is weird.
And then this happened in our latest turn:
Ground combat at Pegu (55,53)
Allied Deliberate attack
Attacking force 14890 troops, 417 guns, 307 vehicles, Assault Value = 634
Defending force 27466 troops, 432 guns, 1298 vehicles, Assault Value = 967
Allied engineers reduce fortifications to 0
Allied adjusted assault: 231
Japanese adjusted defense: 761
Allied assault odds: 1 to 3 (fort level 0)
Combat modifiers
Defender: preparation(-)
Attacker:
Japanese ground losses:
792 casualties reported
Squads: 1 destroyed, 68 disabled
Non Combat: 1 destroyed, 14 disabled
Engineers: 0 destroyed, 11 disabled
Guns lost 30 (2 destroyed, 28 disabled)
Vehicles lost 28 (3 destroyed, 25 disabled)
Allied ground losses:
762 casualties reported
Squads: 11 destroyed, 93 disabled
Non Combat: 0 destroyed, 34 disabled
Engineers: 5 destroyed, 12 disabled
Vehicles lost 39 (1 destroyed, 38 disabled)
Assaulting units:
Gardner's Horse Regiment
9th Australian Division
16th Light Cavalry Regiment
2nd British Div /28
85th British AT Gun Regiment
I/224 Gp Forward Base Force /1
8th Mahratta AT Gun Regiment
XXXIII Indian Corps
16th Indian Heavy AA Rgt /3
Defending units:
19th Division
2nd Tank Division
3rd Tank Regiment
12th Tank Regiment
23rd Tank Regiment
11th Tank Regiment
2nd Ind. Mountain Gun Regiment
51st Ind.Mtn.Gun Battalion
3rd RF Gun Battalion
6th RF Gun Battalion
11th Shipping Engineer Regiment
52nd Ind.Mtn.Gun Battalion
4th Mortar Battalion
18th JNAF AF Unit
And when I load the turn, here's the base:


