helgasoft commented on issue #20342: URL: https://github.com/apache/echarts/issues/20342#issuecomment-2348006919
confirmed - [aria](https://echarts.apache.org/en/option.html#aria) cannot be updated with _setOption_. Workaround is to update _itemStyle.decal_ for individual series - [Demo](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=PYBwLglsB2AEC8sDeAoWsBGBDAxgawHMAnYAV2gBMBhYAG2CIC5YByAYgDEvuWAaNWFmgQAtlkgxmYIqQCm_dFiIQszVOnSzoWDLVkUpM-QPQVZOLLTUmNAZwAWwAO6G5CjafOXbzANo2PdQ9gnDoGZnZuHndgjQB6OOx8YjJKGnomVhAIaDw-AOCKLAcAQSIiLABPAA0_AEZeWAAGAF0Y2Ngi0vKqgE16gDZGgBY2go8SMHEoaGYAWiaAOgB2AA4AVgBmAE5VuoHNneXh4dXN8dgAXwKWm0v22h1ZK2QCrR09A1hpNwKCLVkFReQViTggYHsABVwXoIpD7BBbLBEYJYDh7EowIIMGQsQAiJCQMB6S54_IdWBgiG46HE2RwhFIlFYNEYohgFgFe4FWyAiCyHyvCm2HIEWFCimwEBEWQAMwgAA8IuTJVT7AA5LAiemsSng-zfSogWTIXnKAWQo2yS6wbTaiimvkCzXay6LFUUtW4l06lh6iGG42O822S3Gt2cincikiUi0SAgcUgjrSuWKiKLWAASSxoWgItsYCRwFlwf5tho5DANrN5bRqTA7vaoP1PsYFw8fvhJqQtYFWYoNadTKRLN7w7D1tgMtTvOgkGgBDLzq11qbHf9jlIYDbuu7y9sA6HIeRo4Pk4jzeCvJASnE4QlktgIggFAo4pYHslWi-n431yjLkryKKZrApSxaAAEXEVRWH3ECWWZJFZToegnEFL8PFvdkVCgmCGRNeUiELZAKERRMqioecbXBWQRFHGUIivdA1V3FgIRNBDYBQohkDtKcUSQAA3Sw5EuTCNC9bc2OE0TrQk9AbzvMAH2TWIXzfD9GgUjQfwz VgLgA4IjPQIzo3rDI_Bsdh1mGZYmhwAYv3YbY6hwHBlnWZy2FlXANlWbzZFkAYQqc9p2GWTYcCaMxvM2bAACZlgS7zZRwVZhnWFLwrYbYsAGJoMGGQKsGWdycEjWAxnQMBZAVMAAGUwEqJMbBQ-cOC1CBaEqCIAFkIBwEhbBLLFeiwAAJWQIC_drGogAAvHU6gS9o5qalrfWgBgxFoWaYDAAB1aaCHsMAIm2ohdsq8yiXFfxAh5RwXG-Iwr1q-rlXeurGua1qKTmzqXx6iJAGjtQBleR09bFuW1ZFiGC45uOiBTvO1gcVoCgoYOjaP0u67mIsh92GGJpSdJnTgCEwFZTQiIfmgCxap0sEKAhZh1m2YYgIKEBgBFCRZlYFSQCoLRaqICSReYVYrxxMAVJEZhoDjWgrz0WU0ZYHBxcBCTlFR5XVavBbmAR2IpiIf4td0IQ8ivWxSAwD6tYkx3naUa2Ilt3IJKSQgSHIagwkyFgrewAAKJpeGj2OAEo_YYMwiHSYm2HKxOiGTw7X3Z5or1vN9RQ5q9aJEABxLAQGYOpo55J2XdxnU1I0aGlpr1aLlCSzWDYAYAFF7OWbZKo8EyrgEarBAVREAAVgByCWrMe2IHGcCIsG3YAJNN2B1jri2rQiWgclkN3tGr7jvGMC2Df-IhIWAOgE1cG_gmkFH7_7kQQAxAtX6vCJWgcgja0DVjyKYYBSCChVmA9WOQ8B-Cnh4IQohpiSFtMbAoqCxCC0gqQCogsACqIAQI6gSk0A-wQT7QFkE3MCHRu5pwAELbGYf3KgI9Caszzg0C4zVjQRC6PYfQo8NDmQ8A4LAFBnD0MfCEEOERw5YAjglWuvA1HbA0ZsWWSwEoJx5rER4GBngMNXs9ABiMdriCXpguBFxUw4ERDMDeW8dJiCtjkZgmxCZMNDj5WUsodKFzIouPw6xGjLEaBE2AyxkHBH9ikIOqdQ6bxUjpHEWdAQpNAeAikmTs653sMwKhsQ CmAgAErSIgNA7xhjggYkoP9Doa8Xq-VoLyQmg0MEsD6rXFYvA6h1EWNsIScxhmbAmtsRYmwhITJwHMYYIyY4zLmHDWWSzhhrMWLLaZwxoq8AiZsZZ0yGjrN4Hs-w8ylnbAWDM3g6zFmLGGA8nZcw9lUDqNMiJ-x7l1HWPDQZCVFirX6VEoZIyFqwD6ccnxCVNkTQGCsMZwyEr2CRQMKFML7kJQSoi5F4yQXovhliuosLBnTIGPi5YKKiUYoWjpEU7dYCZUJh4ggXi96lIUT3dghxNiMoxDIpwzDgGZB8RcKRwqcm9ywHKwV0jnAAHlAm8jALUfOkqhXKtVbIMA_RYCdwpBCSYdJmCky5HcSe7gVLPwgJfB6GgW6tMsRbH6ciW7oEBl1EGrAIbY3nA1GGHdCZIxOmdC61i9qhpxn9LaUadJ-IiJwKIHAxGmSvHmeUtDXXBB-hUKgthQw_XbBSFgYgFRzB4cUtElgcAR1rk0ISThYBzFgJsAYIAFRxwANywCpjTOmsAERvi0H2pwCJapzFsLeHWytnAVBAH2l2cwB1EFpuvWAzwT4gALH29lOQ5gazRqsLtPa_a4ADqkYOvLlER3WA0B9hyGhLGWAnOWSdAQ5zZjW7ligQDGkoI_b2wAKCVAklXQDFBH7MNA71V6vxYi7wKg7Z6NB5zi1zR4D-BB74RDLlLO-gIlVC3LWQXkIgB0AB8cAn3wBB2gTgqi2Aamhg6mGr4dLfh4MiM7HiVD6qB30IpFx6H1j-QEgmzCuPSah5wkFnhVBKVeEdsgFP8ZrpQ96FR8zghmPgwhLjmjPKvLrCougdTtM6U9RVIqxWadQ7ZmVYcCCR2jvnDzIL302eFSq2UaqNV8PMbZvzaqDVGoSZ-ogVSyK1JZQXaRoSCC5KvFgGeth56L0BGY9-R9WA0LPoTNLiIZPbyK8IXBRmWBpLKxcHB6DoAGYayQshzAKF_o0PVwW_diiiha-IX0dU-a0PnLhJV 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