When loading old base layout on pvp base , junk in the base or any added buildings/traps will return an error and it wont load, it should work fine on war base layouts as long as you have not added anything since you last saved it, but for example if you save a pvp base layout and some rubble rocks or junk appears overnight then its seen as extra stuff added since it was saved and layout manager cant load the saved base over that new stuff.
I helped sig test layout manager when he wrote it, and i found it worked best for hero defense, so i would save my regular base then make a HD base then do the hops for HDs and when finished just reload my regular base, then next round of hds just reload the saved HD base, but if junk appears in the base i had to make new layout from scratch as layout manager could not load for reasons above.
Sig never got round to fixing this problem but he was close to doing so i think, but as Pirate said Sig has left the Building.
Member in Blackphase_Siths Main Base - ChAoS999 , Windows was a trap.
Stealing Rebs loot since November 2014.