Studio Fails to Open Specific Place — Repeated “HTTP 504” Error

Roblox Studio consistently fails to open one specific place from the Start Page, showing an HTTP 504 error. The error appears before the place loads, during the “Creating Data Model…” stage. Studio freezes briefly, then shows the popup.

The issue only affects this specific place.

Place: [600+] THE practice place - Roblox
Place ID: 17213687898
Incident ID: 8028576864070361277

My place contains maybe ~1000 StringValues, each storing around the limit of 120,000 characters.
These objects store large serialized strings for internal use, so the total data footprint is high even though the instance count is not huge.

I have encountered this issue before, where retrying 2–3 times fixes it, but currently it requires like 15–20 attempts before Studio successfully loads the place.

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Steps to Potentially Reproduce? :

  1. Open Studio.
  2. Go to the Start Page.
  3. Click the place.
  4. Studio begins loading (“Creating Data Model…”).
  5. Studio freezes for several seconds.
  6. A popup appears with the error.

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System Information :

  • OS: Windows 11
  • CPU: Intel Core i3-8100 @ 3.60GHz (4 cores / 4 threads)
  • RAM: 16 GB DDR4 @ 2400 MT/s
  • GPU: Intel UHD Graphics 630
  • GPU Driver: 30.0.101.1404 (2/18/2022)
  • RAM in use: ~11.8 GB
  • Available: ~4.0 GB

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Beta Features Enabled :

  • Dragger QoL Improvements
  • Improved UIStrokes
  • Live Animation Creator
  • Next Gen Studio Preview
  • UIDragDetectors

Expected behavior

The place should open normally on the first attempt, without freezing or producing an HTTP 504 error.

A private message is associated with this bug report