Hi, Could you, please, point me in the right direction when facing:

Cannot invoke "com.starrocks.catalog.MvBaseTableUpdateInfo.getToRefreshPartitionNames()" because "mvBaseTableUpdateInfo" is null
	at com.starrocks.catalog.mv.MVTimelinessArbiter.collectBaseTableUpdatePartitionNames(MVTimelinessArbiter.java:182)
	at com.starrocks.catalog.mv.MVTimelinessListPartitionArbiter.getMVTimelinessUpdateInfoInChecked(MVTimelinessListPartitionArbiter.java:72)
	at com.starrocks.catalog.mv.MVTimelinessArbiter.getMVTimelinessUpdateInfo(MVTimelinessArbiter.java:98)
	at com.starrocks.catalog.MvRefreshArbiter.getMVTimelinessUpdateInfo(MvRefreshArbiter.java:92)
	at com.starrocks.scheduler.mv.MVTimelinessMgr.getMVTimelinessInfo(MVTimelinessMgr.java:55)
	at com.starrocks.sql.optimizer.QueryMaterializationContext.getOrInitMVTimelinessInfos(QueryMaterializationContext.java:225)
	at com.starrocks.sql.optimizer.MvRewritePreprocessor.prepareRelatedMVs(MvRewritePreprocessor.java:693)
	at com.starrocks.sql.optimizer.MvRewritePreprocessor.prepare(MvRewritePreprocessor.java:169)
	at com.starrocks.sql.optimizer.QueryOptimizer.prepareMvRewrite(QueryOptimizer.java:339)
	at com.starrocks.sql.optimizer.QueryOptimizer.optimize(QueryOptimizer.java:184)
	at com.starrocks.sql.StatementPlanner.createQueryPlan(StatementPlanner.java:312)
	at com.starrocks.sql.StatementPlanner.plan(StatementPlanner.java:146)
	at com.starrocks.sql.StatementPlanner.plan(StatementPlanner.java:107)
	at com.starrocks.qe.StmtExecutor.execute(StmtExecutor.java:614)
	at com.starrocks.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:423)
	at com.starrocks.qe.ConnectProcessor.dispatch(ConnectProcessor.java:633)
	at com.starrocks.qe.ConnectProcessor.processOnce(ConnectProcessor.java:986)
	at com.starrocks.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:71)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)

on shared-data 3.5.3? The materialized views on which the error appeared show up as refreshed successfully and apart from the error in the logs, no other abnormalities are observed

should be fixed in later version, can you update to latest v3.5 version and give a try?