hi i´m new here, i´ve been searching for an answer to this but i dont find it, frist of all ,thank you for support the mod and for your enormous amount of patience.
Well since i´ve changed buildcraft 6.1.8 to buildcraft 7.017 some textures went missing or invisible( i said some because it is a new a world so i havent much) after that i google some information so i know that textures form both versions are incompatible so you must make a compilation or something like a resourse pack.
The main reason that i post my issue here is.
1: I dont mind playing with the new textures form BC7 so what can i do beside the resourse pack?
2. There is a chance that when i changed BC6 to BC7 , industrialcraft 2 experimental textures went wrong too?and if it is possible how could I solve it?

note: the textures of BC6 and IC2exp were working fine before i made the change to BC7

I made some screenshots for examples
http://imgur.com/a/LE3Kw

as you notice someother mods like forestry or betterstorage do not get affected

note 2: i apologize for my poor english
Some system and mod information:
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 713242696 bytes (680 MB) / 1231552512 bytes (1174 MB) up to 2863661056 bytes (2731 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1448 Optifine OptiFine_1.7.10_HD_A4 41 mods loaded, 41 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHI mcp{9.05} Minecraft Coder Pack
UCHI FML{7.10.99.99} Forge Mod Loader
UCHI Forge{10.13.4.1448} Minecraft Forge
UCHI CodeChickenCore{1.0.7.46} CodeChicken Core
UCHI ImmibisMicroblocks{59.0.0} [Immibis's Microblocks](Immibiss-Microblocks-Mod
1.7.10.jar)
UCHI minecraftloader{0.1} MinecraftLoader
UCHI NotEnoughItems{1.0.5.111} Not Enough Items
UCHI DamageIndicatorsMod{3.2.0} Damage Indicators
UCHI IC2{2.2.757-experimental} IndustrialCraft 2
UCHI AdvancedMachines{1.1.3} IC2 Advanced Machines Addon
UCHI AdvancedSolarPanel{1.7.10-3.5.1} Advanced Solar Panels
UCHI betterstorage{0.9.2.107} BetterStorage
UCHI BuildCraft|Core{7.0.17} BuildCraft
UCHI BuildCraft|Factory{7.0.17} BC Factory
UCHI BuildCraft|Energy{7.0.17} BC Energy
UCHI BuildCraft|Silicon{7.0.17} BC Silicon
UCHI BuildCraft|Builders{7.0.17} BC Builders
UCHI BuildCraft|Robotics{7.0.17} BC Robotics
UCHI BuildCraft|Transport{7.0.17} BC Transport
UCHI eureka{3.0.2} Eureka
UCHI bcadditions{2.2.0} BuildCraft Additions
UCHI ChickenChunks{1.3.4.19} ChickenChunks
UCHI CompactSolars{4.4.39.315} Compact Solar Arrays
UCHI thebombzenapi{2.4.1} ThebombzenAPI
UCHI enchantview{4.0.4} EnchantView
UCHI Enchiridion{1.1} Enchiridion
UCHI enhancedportals{3.0.9} EnhancedPortals
UCHI flansmod{4.8.0} [Flan's Mod](Flans Mod-1.7.10-4.8.0.jar)
UCHI Forestry{3.6.3.20} Forestry for Minecraft
UCHI IC2NuclearControl{1.7.10.07} Nuclear Control
UCHI ImmibisCore{59.0.1} Immibis Core
UCHI iridiummod{0.8} Iridium Mod
UCHI LogisticsPipes{0.9.2.23} Logistics Pipes
UCHI lom{1.7.10-3.0.0} LotsOMobs
UCHI cfm{3.3.6} §6MrCrayfish's Furniture Mod
UCHI harvestcraft{1.7.10b} [Pam's HarvestCraft](Pam's HarvestCraft 1.7.10c.jar)
UCHI Railcraft{9.6.1.0} Railcraft
UCHE RedLogic{59.0.1} RedLogic
UCHI ReiMinimap{1.7.10} Rei's Minimap
UCHI treeores{1.0} treeores
UCHI Waila{1.5.10} Waila

Something's corrupting your textures. Update ALL of the mods.

Start by removing Optifine...