I think this one is also related to the bug that is currently under investigation:
https://forums.ea.com/idea/the-sims-4-bug-reports-en/fr-five-star-property-owner-maintenance-event-doesnt-tick-off/12153867
I have left comments on that thread, but here is a copy and paste of my comment there:
"I have just had this issue. I had a bug infestation at my rental property (my sim is the landlord). I went to the property. I used the bug spray option that cost $400. As soon as I had done that I got the message in the attached partial screenshot.
I do not have any mods installed. I have all expansion packs except Enchanted by Nature. I have all game packs and all stuff packs. I have some of the kits. Please let me know if you need a list of the kits I have.
Edit: My sim has the Freelance Botonist Aspiration and is running a rental as a side business, as well as having a small business.
Edit2: This also just happened with a tenant revolt event, after I went over to the property immediately and promised better conditions.
Edit3: And once again it happened with the explosive malfunction event. As soon as I replaced the stove I got the message saying I had done nothing to address the event again. My tenant also happened to cause a fire on the barbecue at the same time, but I think that was unrelated. Screenshot of the message attached.
Edit4: The Pet adoption drive succeeded and the unit rating went up."
As an additional note here, the "For Rent" expansion pack was the one I was most excited to get and the only one I remember getting with a pre-order. I have been severely disappointed at all the bugs in it from day 1, and I've been avoiding playing The Sims 4 until the bugs with this pack are fixed... The small business pack is what pulled me back into the game for now, but I don't know how long that will last.
Edit5: The water leak event also gave the message that nothing was done to address the event.
Edit6: Trash Overload event gave the same message that nothing was done to address the event after I called in the Trash Removal for $200
