If you call-in falls or paras and then run out of (9) popcap before they get dropped from the plane, the game just swallows the 340/360 manpower, but the paras/falls will not get dropped! This bug is kinda niche but it can cost you the game in the later stage.... which almost happened to me when I discovered this bug
It doesnt happen on commandos because unlike falls or paras, the commandos spawn in the game the second you call-in the glider