Retool Linting Errors and Performance Issues: What's Happening and How to Fix Them

If you've been hitting Retool linting errors and performance issues that seem impossible to resolve, you're not alone. A widely-shared thread in the Retool community forum lays out what many builders are experiencing: phantom linting errors that never clear, sluggish first-paint times, multiplayer save conflicts, and query logic that double-triggers without warning. The good news is that Retool's engineering team has acknowledged these problems publicly. The better news is that there are practical workarounds you can use right now.

The Most Common Retool Bugs Builders Are Hitting in 2025

Based on the community thread and reports from multiple self-hosted and cloud users, here are the issues showing up most frequently:

• Phantom linting errors — errors that appear even when queries have no variables, or that appear and disappear when switching between pages in a multi-page app.
• Impossible loading validation — tables populated from simple GET requests throwing Cannot read properties of null (reading 'id') on every page load, with no clear way to suppress them.
• Slow first paint — a basic table page with a couple of buttons taking over 1 second to render before any data is even fetched. Notably worse on Chrome and Edge on Windows; Safari on macOS appears less affected.
• Multiplayer save conflicts — when two team members edit the same app simultaneously, one person's saved query doesn't propagate to the other. This can waste significant debugging time before you realize the root cause.
• Double-triggering queries — enabling server-side pagination causes queries to fire twice. Automatic query run logic doesn't account for all component states, forcing builders to wire up manual triggers everywhere.

Why Retool Linting Errors Appear Even on Working Queries

The most disorienting category of bugs is the linting false positives. In a multi-page Retool app, each page has its own scope. When you navigate between pages in the editor, the linter re-evaluates expressions against the current page's scope — which means a query referencing a component on a different page will surface a linting error even if the app runs perfectly at runtime. Retool's engineering manager confirmed this directly in the community thread: "switching between pages changes scope and introduces or removes new linting errors." A fix is planned but not yet released.

A related issue affects the Query Library. If a Query Library query has a parameter name that conflicts with something in the calling page's scope, it throws a scope resolution error at load time. The current recommended workaround is to rename the conflicting parameter in the Query Library query itself.

How to Fix (or Work Around) Retool Linting and Null Errors Today

While you wait for Retool to ship the linting engine improvements, these steps will reduce noise and unblock your builds:

• Use optional chaining on all query result access. Instead of writing queryName.data.id, write queryName.data?.id. This silences the Cannot read properties of null error that fires before query results are loaded on first paint.
• Rename conflicting Query Library parameters. If a Query Library query is throwing a scope error and you haven't changed anything, check whether a parameter name clashes with a component or variable name on the calling page. Rename the parameter in the Query Library definition to something more unique, like ql_userId instead of id.
• Avoid relying on automatic query run for paginated tables. If you have server-side pagination enabled on a Table component, disable automatic query triggering on that query and wire it manually to the table's pagination events. Yes, this adds complexity — but it prevents the double-trigger that confuses new team members and wastes API calls.
• Establish a single-editor convention for multiplayer sessions. Until the multiplayer save fix rolls out, agree with your team that only one person edits and saves at a time when working in the same app. Use Retool's branch feature to work in parallel safely.
• Test paint performance on Chrome/Windows specifically. If your end users are on Windows machines using Chrome or Edge, benchmark your app's first paint in that environment — not on a Mac. The gap is real and affects user perception of your tools.

What Retool Has Said About Fixing These Issues

Retool's engineering team responded in the community thread with specifics. On multiplayer saving, a dedicated team has been working on a fix with a planned rollout in early 2025, validated by having the whole engineering team stress-test a single app simultaneously. On performance, work is underway to reduce time-to-first-query and to revamp the layout engine — with the explicit goal of reducing laggy interactions. On linting scope bugs, a fix is targeted for the new year.

One recurring sentiment from the community is worth repeating for anyone evaluating Retool or pitching its continued use internally: "I don't need flashy AI Agents; I just need the basics to work flawlessly." That's a fair framing. The platform's power is real, but rough edges in the editor experience compound quickly when you're maintaining multiple apps for a growing team.

How to Report Retool Bugs Without Exposing Internal Data

One reason these issues persist is that builders don't file bug reports — because reproducing them means exposing sensitive internal app data. If you're in this situation, here are lower-friction options:

• Record a Loom video that shows the bug behavior without revealing sensitive data values. Blur or skip over any PII in the recording.
• Build a minimal reproduction app using mock data ({{ [{ id: 1, name: "Test" }] }} as a hardcoded JS query) that isolates the broken behavior.
• Post to the Retool community forum with screenshots of the error and the query/component config — engineering managers are actively monitoring it and have offered to file internal bug reports directly from community posts.

Retool remains one of the fastest ways to ship internal tooling at scale. But if your team is losing hours to phantom linting errors or multiplayer conflicts, don't just absorb the pain — apply the workarounds above and keep pressure on the fundamentals. The community thread that surfaced these issues got a direct response from engineering leadership. Your bug report might do the same.