When I use scaling sizes & put a 9-slice inside of a frame, under certain resolutions either the sizes or positions seem to be a pixel off. This causes there to be “lines” through 9-slices.
In most cases, a pixel off wouldn’t make much of a difference, but actually looks pretty bad in games like Miner’s Haven:
… & in my own games:
This bug happens on www.roblox.com and can be reproduced by having a 9-slice in a scaled gui (& changing around the resolutions), but in case you want a setup done for you, here’s a repro: repro.rbxl (14.0 KB)
This bug started happening a few months back (occasionally), but is very frequent now.
Does this still happen? Was turning on/off some features this week that might of caused this. If you haven’t restarted studio in the last few days you may need to in order to make sure this bug does not show up.