If you are copying and pasting text into FM field, have you tried doing an "undo" after you paste the text?
I did try a few things but it was very scary. I work in the same file day in and day out, it's my CRM.
I do a great deal of cutting and pasting.
The anomalous behavior I think has stopped after I tested out another one of my files.
However, the plain deal is that my data entry fields which are formatted for Calibri at 10 point black color,
changed to conform to the varied HTML formats of the text that I copied and pasted.
There are quirks. I was trying to import an .XML file and change the XML file into an FMP file, with no success.
I think I triggered some programming with the XML features of FMP.
Along with undo-ing after pasting,
You can also paste a certain way:
You can also apply an auto-enter on fields that would text formatting:
TextFormatRemove ( Field )