Missing Engine injection modification

I have been constantly LOOSING (now missing) my ALREADY RESEARCHED AND BOUGHT MODIFICATION - in 90% it is Engine injection modification. Im experiencing this Database bug for a couple of years, not only lase couple of patches. I wonder that nobody reported that before.
WT_Loosing_modificatioins_

I noticed this annoying database bug at every nation or rank. I’m guessing in average 1 missing modification per month.