Summary
I am able to reproduce this on my PC and new laptop, which I got 3 weeks ago. Reinstalling the URC extension does not resolve this issue. This issue seems to have been experienced by others I have talked to who also programs in verse, as well as our designer who does not use Visual Studio (a very fresh Visual Studio Client). Some have this more/less than others, while I have it every time I launch VSCode with URC.
With the Unreal Revision Control (VS Code Extension) enabled, upon booting up everything seems normal. As soon as I start coding, VSCode’s extensions crash and reboot.
Upon investigating using Windows Event Viewer, VSCode Logs, and Task Manager, I have discovered that every time I initially start coding with URC enabled, my VSCode’s extension host Committed Memory jumps higher and higher until my limit (79.6GB) causes a crash.
It is worth noting that with URC disabled I get a stable, expected 904,000K commit size, and with it enabled I see an idle at 25,000,000K (25GB) (22,000,000K [22GB] on my laptop). It appears to remain stable at this unusually high number until I type, at which point committed memory climbs in roughly 3 GB jumps per Task Manager refresh (~2s) and visibly accelerates — the final ~40 GB is consumed within a single refresh interval, so it crashes before Task Manager can update again. Growth appears exponential rather than linear. I have tested this as the only extension enabled (alongside Verse) and verified it happens only with this extension on (Couldn’t replicate with only Verse).
I was tempted to say that this was some sort of project level corruption, but it follows me on any project I work on and is rather annoying as I rely on being able to see those green, blue and red lines more than I’d like to admit to remember what I’ve touched in a session.
Project size seems irrelevant to this bug.
Version information:
UEFN:
Version: 5.8.0-54872343+++Fortnite+Release-41.00
Platform: Windows 11 (25H2) [10.0.26200.8655] (x86_64)
VSCode:
Visual Studio Code 1.125
Unreal Revision Control (epicgames.urc-vscode) Version 1.0.53853765
System:
Windows 11 Version 25H2
OS build 26200.8655
Please select what you are reporting on:
Verse
What Type of Bug are you experiencing?
Unreal Revision Control
Steps to Reproduce
- Install UEFN/Fortnite
- Open VSCode in a project
- Wait for extensions to load (ensure URC is enabled)
- Use task manager to view Commit size (if unusually high, you will be able to replicate)
- Start typing in VSCode in any verse file in your workspace (no saving needing)
- Immediately notice spiking of Commit size in task manager, followed by a crash of VSCode’s extension host.
Expected Result
Extension works and integrates with project well and successfully, without an unusual memory commit size.
Observed Result
Exponential (accelerating) commit-size growth on typing, until the ~79.6 GB ceiling is hit and the extension host crashes.
Platform(s)
Windows 11 (VS Code)
Additional Notes
EPIC: I can provide screenshots, log files, setups, and more if they would be helpful, but would prefer to do so in a non-public manner. Please contact me if you would like this information.