Waste randomly dumping at fluid dump points causing collapse

Issue description

When no more waste dumping locations are available it appears dumped at the fluid dumping locations causing collapse of those buildings.

Reproduction steps

Load first save, approx 10 minute in the one waste point is full (single point currently being cover by dirt from +01 to +02 to the west).
second save is auto-save after this point as buildings begin to collapse.

During this load i have also encountered slow terrain regen times. eg, when mining the effect takes considerable time to be visually reflected, low FPS has also continued.

Game version and build number

v0.6.4c (b341)

Operating system

Windows

Attachments

24-06-09_22-00-autosave.save
24-06-09_22-15-autosave.save

Okay, after some playing around i discovered the issue. Once i created a new dump area for waste on the coast line it would cause the rest of the coast like to go all buggy. Devs, to recreate just place a dump area on the coast somewhere and wait a few mins. As per screenshot i made a dump area here. Possibly a map creation error or game error. Either way i hope it is helpful.
Please see the attached save setup ready to cause the issue.


Devs save.save

This is not a bug. The author of the map has made the coast too steep, and it is crumbling. The low FPS is because of the large number of large piles of ore. When they crumble, the CPU is heavily loaded.