Blueprint Editing on EventLab Island Causing Repeated "File cannot be saved. Error (25)" Crashes

Bug Info: EventLab Blueprint: Saving Route causes Error (25) crash stating File can’t be saved. Try again. But the game crashes out of the editor and all of my work is completely lost. I’ve lost about 4 hours today trying to fill in the grassy areas around my track.
Platform: PC
Edition: Gamepass w/Premium
Account: Solo
PC GPU: AMD Ryzen 5
Peripheral: GFX drivers updated wthin last 7 days
Settings: Medium graphics
Attempted fixes: Rebooted game and crashes continue

User reported the issue happened when the content update was released; downloading the update fixed it.

This topic reached 2 votes.