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Can someone confirm if 3DCoat 2025 permanent license can be used with older versions? Or someone who has 2024-2025 permanent license install this https://pilgway.com/files/3dcoat/2021/3DCoat-2021-11.exe version and activate it with your version license and let me know if that works. This is the only version that works with my system and before I buy 2025 permanent license I need to be sure I can use 2021.11 with it. I've 23 days of trial left and I want to know what to do after it. I ain't getting nowhere with customer support with this unfortunately. Have tried the newer versions on my PC now and then for last two years and also on my laptop. first in Win 10 and then upgraded pc parts and fresh installed win 11 but still I encounter the same issue. Issue being: Every time I press Undo right after a brush stroke, System freezes for a micro second. If I wait 0.5sec after a stroke and then press undo everything works smoothly. It feels like 3DCoat is writing history of the stroke and pressing undo in the middle of that causes the freeze, just a wild guess could be anything really. I use Huion drawing tablet, but brushing works fine and I've tried windows ink on and off so using wintab or not. Issue seems to be elsewhere. Same undo freeze happens with or without the drawing tablet. This issue isn't in version 2021.11 though and everything works smoothly while handpainting. My system: Motherboard: Asrock B450 pro4 PSU: Corsair 750w Processor: Ryzen 9 5950x GPU: Asus 4070 Ti Super Ram: 64 Gb (yes I've XMP profile on and ran memory tests, no instability) Win 11

Hey there, Please help! 3DCoat gives me a black screen and locks up my computer usually within 5 minutes of painting. When this happens my computer is still on however, not responsive. The monitors lose its signal and the power button, keyboard, and mouse are not responsive. I have to disconnect the power cable from the computer and reboot to resume functionality. I would say, it may be my project file but the issue occurs even with a clean new project containing one mesh and one layer of paint. Within 5 minutes, computer locks up. None the less, here are my project details to hopefully help troubleshoot: 13 paint layers, one of which was projected. I'm working with 3 objects that have 4k textures each. The total poly count for all objects is 708k. I have zero lag during viewpoint navigation and painting. My computer seems not strain before it crashes. To troubleshoot I've tried these versions of 3DCoat yet I still get the black screen: 3DCoat-V4.8.40(GL64) 3DCoat-V4.8.40(DX64) 3DCoat-V4.9.02(GL64) 3DCoat-V4.9.02(DX64) 3DCoat-V4.9.03(GL64) 3DCoat-V4.9.03(DX64) I'm running the latest update for Windows 10, version 1903. Here are my hardware specs: AMD Ryzen Threadripper 2950X 3.5 GHz 16-Core Processor 64GB RAM G.SKILL GeForce GTX 1080 Ti SC Black Edition 2 1TB M.2 Samsung 970 PRO Series X399 MSI Extended-ATX Motherboard Any help would be appreciated. Thanks!