Format Issues that are strange

I have a particular sheet within a calc document that is one of 4. This particular sheet (Lets call it sheet3) has several conditional formats here and there. So do the other 3 as well. But sheet3 every time I relaunch the document a portion of the sheet3 highlights the fonts to bold or a deeper black. The only way I can get it back to normal is by going into the conditional format manager and select (edit) defined formats and canceling out of them. I do about half of them. Strange Strange… There are some conditional formats that I do have defined to bold certain cells but I have trippled checked them for accuracy. The conditional formats work as designed in sheet3 once I clear this freaky situation. I thought maybe clearing cache or something within LibreOffice preferences may help but I’m not sure. The preference settings are what have been in place for years. so cache? but I’m not sure how to do that safely or if it is something to consider at all. Any help would be greatly appreciated. I’m running LibreOffice 25.2.6.2 AARCH64 for Mac running Tahoe 26.0.1