Issue description

When I loaded yesterday's save file it became obvious that something was wrong - when I built belts they appeared to look fine at first then when I confirmed the position they would disappear leaving only the pylons - they would still be built. Buildings are glitching as I pass over the map and the surfaces of belts are changing in colour and texture. There are also a number of odd shadows on the map - these are rectangular and look like they are produced from a rectangle of pipes - but nothing is there to cast a shadow - they do appear to be centred on some buildings - but nothing obvious. Belt shadows are also not being drawn correctly. Before I reported this I:

1. Checked previous days' saves that I knew were OK - they all exhibited the behaviour
2. Restarted my computer and checked everything again - everything still showed the behaviour

I am using Ubuntu 25.04 and Steam Play (Proton Experimental) and as I say it was working well yesterday - and there have been no changes to my system or Steam since yesterday evening.

Reproduction steps

Load attached save file... the belts issue just happens as do the building/belt graphics issues
To get the shadows I had to make sure I was viewing the map in a certain direction and it could be fleeting

Game version and build number

v0.7.1e b424

Operating system

Linux

Attachments

25-05-24_09-33-09_4234.log, 25-05-24_10-07-35_4755.log, 25-05-24_10-13-05_5282.log, 09.save, belt ghosts not appearing.jpg, belt non ghosts being built.jpg, belt showing improperly drawn shadow.jpg, weird shadows 1.jpg, weird shadows 2.jpg

Files not imported: 09.save

I suddenly wondered if Wayland was the problem so I tried X. It's exactly the same :(
I also found out that:

1. the problem involves pipes as well - so all transports
2. to get the weird shadows I think you have to start building a transport

I can't try railways as I haven't got there yet - researched just not able to build

I saw there was a patch yesterday so version is now v0.7.2 b432

This has done nothing to make the problems better or worse - I have also experimented with different settings with no effect (I am currently on ultra but even the lowest settings did nothing except make things look grotty :-) ). Grasping at straws I tried the other monitor in my 2 monitor set up ... nothing changed. I took a video of the effects as I flew over the map ... but it turned out so large (nearly 0.5 G that I didn't try to post it - if you want any specific thing in a video screenshot please let me know and I can produce it and upload it. I also tried totally reinstalling from Steam and also starting a totally new game. Nothing has changed.

System Details Report

Report details

• Date generated: 2025-05-25 10:41:14

Hardware Information:

• Hardware Model: Micro-Star International Co., Ltd. MS-7D75
• Memory: 32.0 GiB
• Processor: AMD Ryzen™ 9 7900X3D × 24
• Graphics: AMD Radeon™ RX 7800 XT [Dedicated GPU]
• Graphics 1: AMD Radeon™ Graphics [Integrated - not used]
• Disk Capacity: 4.0 TB

Software Information:

• Firmware Version: 1.J0
• OS Name: Ubuntu 25.04
• OS Build: (null)
• OS Type: 64-bit
• GNOME Version: 48
• Windowing System: Wayland
• Kernel Version: Linux 6.14.0-15-generic

Just thought this might help

OK so this is embarrassing :-) The very thing I should have checked first is the one that I left till now. I changed from Proton experimental to Proton 9.0-4 and everything is good once again. I am so sorry to have wasted your time - but I have at least learned something - check absolutely EVERYTHING - I am closing this issue. Thank you.