When you kill enemy, he drop an item, but items not shown, still you can get it when step on spot where enemy was dead. Why its not shown? icon? Charset?
To bad that this plugins dont work with GALV_CharacterAnimationsMZ, GALV_CharacterFramesMZ,GALV_DiagonalMovementMZ.
Hey sorry I didn't reply sooner, I didn't see this.
The issue you're describing about invisible loot drops was fixed. If you redownload it now, it should work. If you don't feel like redownloading it, look for the map named "_ActionMap", and give the first event in the upper most left any image and the loot will start appearing as expected (I described the fix in an earlier post).
Regarding incompatibilities with other plugins, understandably, I tried my best to limit external plugins while creating this project so as to maximize compatibility, but there will incompatibilities unfortunately due to the sheer number of changes made to the actual core code to make this engine work as you see it.
I personally am not familiar with those particular GALV plugins, and chose to use Yami's diagonal movement plugin (with heavy edits) to accomplish 8-directional movement because it was a super light plugin to begin with (like 100 lines of code, was almost tempted to just merge it into JABS).
Based on the fact that this engine is almost entirely driven around the creation of events and collision of those events, it isn't a surprise that they don't work... do they throw errors or something when alongside JABS? (maybe try putting GALV's plugins after/before mine, whichever you might not have tried)