Vaadin 24.x生产环境中custom-field标签不显示问题求助

在基于Spring Boot的Vaadin 24.x Flow项目中，开发环境下FormLayout内的vaadin-custom-field标签显示正常，但部署到Ubuntu生产服务器后，这些custom-field的<label>标签缺失，同一FormLayout内的其他字段标签显示正常。

视图中的FormLayout代码 #

<vaadin-form-layout id="feed-overview" class="osiris-card orisis-card-form">
    <vaadin-text-field colspan=1 id="network-field" label="Network" theme="readonly" readonly></vaadin-text-field>
    <vaadin-custom-field colspan=1 label="Address" has-label><address-link id="address-field"></address-link></vaadin-custom-field>
    <vaadin-custom-field colspan=1 label="Maintainer" has-label><address-link id="creator-field"></address-link></vaadin-custom-field>
    <vaadin-button colspan=1 label="Body" id="source-button" theme="primary contrast">View in Studio</vaadin-button>
    <vaadin-big-decimal-field colspan=1 class="important-text" id="security-field" label="Security Sum" theme="readonly" readonly></vaadin-big-decimal-field>
</vaadin-form-layout>

自定义元素address-link代码 #

import {LitElement, css, html} from 'lit';
import {customElement, property} from 'lit-element';
import { applyTheme } from 'Frontend/generated/theme';

@customElement('address-link')
export class AddressLink extends LitElement {

  protected override createRenderRoot() {
    const root = super.createRenderRoot();
    applyTheme(root);
    return root;
  }

    render() {
        return html`<vaadin-horizontal-layout clase="vaadin-field-container" part="address-layout" theme="spacing-s" style="width: 100%;">
                            <a href="${this.explorerLink}" part="scan-link" class="explorer-link" target="_blank" rel="noopener noreferrer">
                                    ${this.shortName}
                            </a>
                            <vaadin-button class="copy" part="copy-button" theme="icon tertiary-inline" @click="${this.copyToClipboard}">
                                <vaadin-icon class="copy-icon" icon-class="fa fa-copy"></vaadin-icon>
                                <vaadin-tooltip slot="tooltip" text="Click to copy"></vaadin-tooltip>
                            </vaadin-button>
                        </vaadin-horizontal-layout>`;
    }
}

已尝试的解决动作 #

• 将custom-field嵌入address-link组件（怀疑ShadowDom问题），无效
• 确认未使用影响标签显示的样式
• 排查过缓存相关设置，生产环境下标签仍不显示

环境信息 #

• Vaadin版本：24.1.x（已升级到24.2，问题未解决）
• Spring Boot版本：3.1.1
• 开发环境：Windows
• 生产服务器：Ubuntu 20
• 部署方式：bootJar打包部署

内容的提问来源于stack exchange，提问作者Dima Yankin