diff --git a/db/migration/1729763649580-SetYAxisMinDefaultToZero.ts b/db/migration/1729763649580-SetYAxisMinDefaultToZero.ts
index 9fabcb22b8..fdbea7e339 100644
--- a/db/migration/1729763649580-SetYAxisMinDefaultToZero.ts
+++ b/db/migration/1729763649580-SetYAxisMinDefaultToZero.ts
@@ -6,23 +6,56 @@ export class SetYAxisMinDefaultToZero1729763649580
     implements MigrationInterface
 {
     public async up(queryRunner: QueryRunner): Promise<void> {
-        // when inheritance is disabled, set yAxis.min explicitly to "auto"
-        // for charts that used to rely on "auto" being the default
+        // CHARTS THAT DON'T INHERIT FROM AN INDICATOR
+
+        // set yAxis.min explicitly to "auto" for line charts
+        // that used to rely on "auto" being the default
         await queryRunner.query(`
             -- sql
             UPDATE chart_configs cc
             JOIN charts c ON cc.id = c.configId
             SET
                 -- using JSON_MERGE_PATCH instead of JSON_SET in case yAxis doesn't exist
-                cc.patch = JSON_MERGE_PATCH(cc.patch, '{"yAxis":{"min":"auto"}}'),
-                cc.full = JSON_MERGE_PATCH(cc.full, '{"yAxis":{"min":"auto"}}')
+                cc.patch = JSON_MERGE_PATCH(cc.patch, '{"yAxis":{"min":"auto"}}')
             WHERE
                 cc.full ->> '$.type' = 'LineChart'
                 AND cc.patch ->> '$.yAxis.min' IS NULL
                 AND c.isInheritanceEnabled IS FALSE
         `)
 
-        // set yAxis.min to "auto" for etl-authored configs for configs
+        // recompute the full configs of all charts that don't inherit
+        // (we do this for all charts, not only line charts, because
+        // the default grapher config has been changed)
+        let charts = await queryRunner.query(`
+            -- sql
+            SELECT
+                cc.id AS configId,
+                cc.patch AS patchConfig
+            FROM charts c
+            JOIN chart_configs cc ON cc.id = c.configId
+            WHERE c.isInheritanceEnabled IS FALSE
+        `)
+        for (const chart of charts) {
+            const fullConfig = mergeGrapherConfigs(
+                defaultGrapherConfig,
+                JSON.parse(chart.patchConfig)
+            )
+
+            await queryRunner.query(
+                `
+                  -- sql
+                  UPDATE chart_configs cc
+                  SET cc.full = ?
+                  WHERE cc.id = ?
+              `,
+                [JSON.stringify(fullConfig), chart.configId]
+            )
+        }
+
+        // INDICATOR CHARTS
+
+        // ETL-authored configs:
+        // set yAxis.min explicitly to "auto" for line charts
         // that used to rely on "auto" being the default
         await queryRunner.query(`
              -- sql
@@ -47,17 +80,31 @@ export class SetYAxisMinDefaultToZero1729763649580
                  cc_etl.patch AS etlConfig
              FROM variables v
              JOIN chart_configs cc_admin ON cc_admin.id = v.grapherConfigIdAdmin
-             JOIN chart_configs cc_etl ON cc_etl.id = v.grapherConfigIdETL
+             LEFT JOIN chart_configs cc_etl ON cc_etl.id = v.grapherConfigIdETL
              WHERE
                 COALESCE(cc_etl.patch ->> '$.type', 'LineChart') = 'LineChart'
                 AND cc_etl.patch ->> '$.yAxis.min' = 'auto'
          `)
-
         for (const indicator of indicatorConfigs) {
-            const fullConfig = mergeGrapherConfigs(
-                JSON.parse(indicator.etlConfig),
-                JSON.parse(indicator.adminConfig)
-            )
+            const adminConfig = JSON.parse(indicator.adminConfig)
+            const etlConfig = indicator.etlConfig
+                ? JSON.parse(indicator.etlConfig)
+                : {}
+
+            // if both configs didn't specify yAxis.min, then the config
+            // used to rely on the default value being "auto"
+            const isLineChart =
+                !adminConfig.type || adminConfig.type === "LineChart"
+            if (
+                isLineChart &&
+                adminConfig.yAxis?.min === undefined &&
+                etlConfig.yAxis?.min === undefined
+            ) {
+                adminConfig.yAxis = adminConfig.yAxis ?? {}
+                adminConfig.yAxis.min = "auto"
+            }
+
+            const fullConfig = mergeGrapherConfigs(etlConfig, adminConfig)
 
             await queryRunner.query(
                 `
@@ -71,7 +118,7 @@ export class SetYAxisMinDefaultToZero1729763649580
         }
 
         // Update the full configs of all charts that inherit from an indicator
-        const charts = await queryRunner.query(`
+        charts = await queryRunner.query(`
              -- sql
              SELECT
                  cc.id AS configId,
@@ -94,16 +141,6 @@ export class SetYAxisMinDefaultToZero1729763649580
                 ? JSON.parse(chart.adminConfig)
                 : {}
 
-            // if neither the indicator chart nor the patch config specified a yAxis
-            // min value, then the chart used to rely on the default "auto" value
-            if (
-                etlConfig?.yAxis?.min === undefined &&
-                patchConfig.yAxis?.min === undefined
-            ) {
-                patchConfig.yAxis = patchConfig.yAxis ?? {}
-                patchConfig.yAxis.min = "auto"
-            }
-
             const fullConfig = mergeGrapherConfigs(
                 defaultGrapherConfig,
                 etlConfig,