ID:2477145
 
Resolved
The map editor suffered reduced performance.
BYOND Version:512
Operating System:Windows 7 Ultimate 64-bit
Web Browser:Chrome 74.0.3729.169
Applies to:Dream Maker
Status: Resolved (512.1472)

This issue has been resolved.
Descriptive Problem Summary:

The most recent update completely trashed map editor performance.

It's just unresponsive as all getout after updating to the latest, especially when scrolling around a large map, even at huge zoom sizes.
Rats. I was afraid something unwanted would happen. I'll have to go in and try to get a handle on why it's performing badly.

I didn't notice anything terrible in my big-map test case, although admittedly it wasn't a super-thorough test. Do you have a project I could definitely see this in easily?
I'll give you a test case once you've had your weekend.
Lummox JR resolved issue with message:
The map editor suffered reduced performance.