As MM says, a Save, exit the game, restart the game, then load the Save can sometimes help. One thing with your mod list, is you can remove the "Small patch for TMO 2.5" (RSRDC fixes that issue), and put "RSRDC_V5xx_Patch1" in after RSRDC, such that you would have
TMO 2.5
RSRDC_TMO_v5.02
RSRDC_V5xx_Patch1
Fixed_CP_sonar_RSRDC
Bigger BetterProtractors
just one question though - is the sonar fix needed with RSRDCv5.02? It edits the sensors for the Type B, Type C and Type D IJN Kaibokan (DE) ships. I am not at my regular computer, so cannot see the files. Also, "shelling-out" to Windows, where you use <Alt><Tab> or <Ctrl><Tab> combinations, or the <Windows> key to get to the desktop or another app, can and will cause that sort of issue with the "Passing thermal layer" repeating, among other symptoms, such as a column of steam following your submerged submarine around...