fix: install modal QRCode regeneration

packages/sdk-multichain/src/multichain/index.ts

@@ -247,6 +247,9 @@ export class MultichainSDK extends MultichainCore {
 			this.options.ui.factory.renderInstallModal(
 				desktopPreferred,
 				async () => {
+					if (this.dappClient.state === 'CONNECTED' || this.dappClient.state === 'CONNECTING') {
+						await this.dappClient.disconnect();
+					}
 					return new Promise<ConnectionRequest>((resolveConnectionRequest) => {
 						this.dappClient.on('session_request', (sessionRequest: SessionRequest) => {
 							resolveConnectionRequest({

packages/sdk-multichain/src/multichain/transports/mwp/index.ts

@@ -28,7 +28,6 @@ export class MWPTransport implements ExtendedTransport {
 	private __pendingRequests = new Map<string, PendingRequests>();
 	private notificationCallbacks = new Set<(data: unknown) => void>();
 	private currentSessionRequest: SessionRequest | undefined;
-	private connectionPromise?: Promise<void>;
 
 	get pendingRequests() {
 		return this.__pendingRequests;
@@ -139,7 +138,7 @@ export class MWPTransport implements ExtendedTransport {
 		} catch {}
 
 		let timeout: NodeJS.Timeout;
-		this.connectionPromise ??= new Promise<void>((resolve, reject) => {
+		const connectionPromise = new Promise<void>((resolve, reject) => {
 			let connection: Promise<void>;
 			if (session) {
 				connection = new Promise<void>((resumeResolve, resumeReject) => {
@@ -175,14 +174,15 @@ export class MWPTransport implements ExtendedTransport {
 					dappClient.connect({ mode: 'trusted', initialPayload: request }).catch(rejectConnection);
 				});
 			}
+
 			timeout = setTimeout(() => {
 				reject(new TransportTimeoutError());
 			}, this.options.connectionTimeout);
+
 			connection.then(resolve).catch(reject);
 		});
 
-		return this.connectionPromise.finally(() => {
-			this.connectionPromise = undefined;
+		return connectionPromise.finally(() => {
 			if (timeout) {
 				clearTimeout(timeout);
 			}

packages/sdk-multichain/src/ui/modals/base/AbstractInstallModal.ts

@@ -58,6 +58,7 @@ export abstract class AbstractInstallModal extends Modal<InstallWidgetProps, QRL
 			}
 
 			if (now >= sessionRequest.expiresAt) {
+				this.stopExpirationCheck();
 				logger('[UI: InstallModal-nodejs()] ⏰ QR code EXPIRED! Generating new one...');
 				try {
 					// Generate new session request

packages/sdk-multichain/src/ui/modals/node/install.ts

@@ -21,12 +21,14 @@ export class InstallModal extends AbstractInstallModal {
 			console.log(`EXPIRES IN: ${formattedTime}`);
 		}
 	}
+
 	renderQRCode(link: QRLink, connectionRequest: ConnectionRequest): void {
 		const { sessionRequest } = connectionRequest;
 		const expiresIn = sessionRequest.expiresAt - Date.now();
 		const expiresInSeconds = Math.floor(expiresIn / 1000);
 		const shouldLog = shouldLogCountdown(expiresInSeconds);
 		const formattedTime = formatRemainingTime(expiresIn);
+		this.startExpirationCheck(connectionRequest);
 
 		this.displayQRWithCountdown(link, expiresIn);
 
@@ -41,7 +43,6 @@ export class InstallModal extends AbstractInstallModal {
 		}
 		const { link, connectionRequest } = this;
 		this.renderQRCode(link, connectionRequest);
-		this.startExpirationCheck(connectionRequest);
 	}
 
 	unmount(): void {