Just in case please attach the save and describe how you editted.
Pretty heavy editing, 100% done through the TiTsEd tool from GitHub. I mainly did it to skip the fights by making my character pretty overpowered, as I'm pretty much only playing for the universe and smut. I also use it to reverse unwanted transformations or, on the contrary, change my character for it to be precisely how I want it to. The flash version handled any edit made extremely well, I've never had the slightest error or exception report.
I lost track of how much stuff I changed, but I wouldn't be surprised if some edits made go beyond the expectations of the javascript version, since a lot of them are kind of excessive I guess? For example, I changed the amounts of hardpoints, crew slots and storage space on the sidewinder, I leveled the character to a level that's pretty much higher than any enemy or NPC in the game and gave myself skills from other classes. Again, the flash version handled these edits like they always belonged in the game, as I don't remember having the slightest bug or issue, but the javascript version might have different limitations.
Save file is attached.