bug if 2 player try load or unload wagon simultaneously

Error while running event Vehicle Wagon::on_tick (ID 0)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
__Vehicle Wagon__/control.lua:174: in function <__Vehicle Wagon__/control.lua:116>

i use default config of you mod, server is on large mod pack (80+) i am not server admin no can take complet log, mod "overide" you tank is more bob! > AAi programable vehicules > additional turrets more bob! > Angel's refining->add icon size problem probaly game try open gui on non grafic...

conflit with morebob (https://mods.factorio.com/mod/morebobs) him modify you recherche "fertilizer", in tech tree see only "bio farm" in dependance of "fertilizer" but him apear red, probaly need call this moder for huge element with bob you can create new recherche wit...

error on all tank build in tank factory triger is if player mout in and bug is only on dedicated server no solo or multi with grafic client

bug on 2.5.3 power rail resolved but on new builded rail "rail power conector" no work if him build after powered rail, need unbuild rail near him and rebuild

probaly need new tech after mk4 pole & station & solar pannel, recipe use gold wire, electronic processing board, silver-zink accu, and bob item d(pole, acu ... mk4 x5, x10, x15)

posible add setting for disable huge electric build (station, pole, accu, solar farm) because it is cheated compare to bob mk1-4 and to easy recherche & craft

conflict with heavytank https://mods.factorio.com/mod/HeavyTank ... 000bd54578

why angel exploration tank (https://mods.factorio.com/mod/angelsexploration) is abandoned ? possible update or insert in other mod (exmple angel industrie) ?

PS: this tank is so sexy i want bite biter with him ;p

miss angel catalist(mineral, cristal, hybrid) and slag for compresed recipe