Having PAL cradles in physics range sometimes produces the log message "DragCubeSystem: Rendering procedural drag for PAL.Cradle250" every second. (Presumably this would happen with PAL.Cradle375 as well, but I haven't tested that.)
This doesn't happen consistently, and I've had trouble reproducing it on the launchpad, but I've attached a save file with a Minmus base where it happens consistently. I've tested the save in a clean install of KSP 1.3.1 (Steam version on Linux) with no mods except MKS 0.53.0 (and its bundled dependencies), updated with the USI Tools 0.10.1 bugfix release.
Having PAL cradles in physics range sometimes produces the log message "DragCubeSystem: Rendering procedural drag for PAL.Cradle250" every second. (Presumably this would happen with PAL.Cradle375 as well, but I haven't tested that.)
This doesn't happen consistently, and I've had trouble reproducing it on the launchpad, but I've attached a save file with a Minmus base where it happens consistently. I've tested the save in a clean install of KSP 1.3.1 (Steam version on Linux) with no mods except MKS 0.53.0 (and its bundled dependencies), updated with the USI Tools 0.10.1 bugfix release.