These mods are known to be incompatible with B9 R5. Please note the version, later ones will (hopefully) fix it
Old or duplicate Firespitter .dlls, if in doubt delete all
firespitter.dllfiles and use the one B9 provides, if you want the FS parts install FS first.
Various files from community patches for B9 R4. All of them are now invalid and should be removed.
HotRockets v7.21LS - Will break engines and cause other strangeness in career mode. Install before B9, which provides blanking file for the offending MM patches. Otherwise do not install MP_Nazari/b9_hotrockts.cfg. The relevant effects have been included in B9 R5.
RasterPropMonitor v0.18.2 - Will break IVAs. Install before B9, which provides a blanking file for the offending MM patches. Otherwise do not install the
B9_Aerospace/RPM/Patches/*files. B9 R5 includes a custom RPM setup for its IVAs.
Skillful R1 rev.2 - Has been known to break mass of larger parts.
TweakScale v1.43 - Graphics issues, slowdowns, memory leaks. Avoid scaling anything from B9 with a tank, HX hangars. Look for the
FSfuelSwitchmodule in the part's information window.
Modular Fuel Tanks v5.1.1 - Remove provided B9 patch
GameData\ModularFuelTanks\B9_modularFuelTanks.cfg. MFT support is now provided directly.
Real Fuels v7.3 - Remove provided B9 patch
GameData\RealFuels\B9_modularFuelTanks.cfg. RF support is now provided directly.
Deadly Reentry Continued v5.2 - Not all parts are covered, engines overheating. Remove the
USI Kolonization Systems (MKS/OKS) v0.20.8 - Issue with
FSfuelSwitchmodule (ie, every single fuselage/tank/adaptor in B9).