Hi,
It happens only for this one panel. It does not have any drilldowns.
When I try same vizualization with a different Lens panel this issue does not repeat.
Since I am not allowed to share whole dashboard, I have copied the issued panel into another dashboard and exported it below.
{"attributes":{"description":"","hits":0,"kibanaSavedObjectMeta":{"searchSourceJSON":"{\"query\":{\"query\":\"\",\"language\":\"kuery\"},\"filter\":[]}"},"optionsJSON":"{\"useMargins\":true,\"hidePanelTitles\":false}","panelsJSON":"[{\"version\":\"7.12.0\",\"type\":\"lens\",\"gridData\":{\"x\":0,\"y\":0,\"w\":24,\"h\":15,\"i\":\"aa2b5004-f115-4565-a26a-0c9f5e46d5ec\"},\"panelIndex\":\"aa2b5004-f115-4565-a26a-0c9f5e46d5ec\",\"embeddableConfig\":{\"viewMode\":\"view\",\"filters\":[],\"hidePanelTitles\":false,\"query\":{\"language\":\"kuery\",\"query\":\"\"},\"timeRange\":{\"from\":\"now-7d\",\"to\":\"now\"},\"refreshConfig\":{\"value\":0,\"pause\":true},\"searchSessionId\":\"b757d3f0-1298-48de-be69-5bf4e538c82e\",\"syncColors\":true,\"attributes\":{\"title\":\"\",\"type\":\"lens\",\"visualizationType\":\"lnsXY\",\"state\":{\"datasourceStates\":{\"indexpattern\":{\"layers\":{\"0bdddee9-20e1-4eeb-b457-f58ba3995806\":{\"columns\":{\"4d9f39fd-766c-47ce-9fca-bcd08778c277\":{\"label\":\"Top values of updatedBy\",\"dataType\":\"string\",\"operationType\":\"terms\",\"scale\":\"ordinal\",\"sourceField\":\"updatedBy\",\"isBucketed\":true,\"params\":{\"size\":15,\"orderBy\":{\"type\":\"column\",\"columnId\":\"ed42aae5-acd9-4660-851b-08d8cbe0d7e4\"},\"orderDirection\":\"desc\",\"otherBucket\":false,\"missingBucket\":false},\"customLabel\":true},\"ed42aae5-acd9-4660-851b-08d8cbe0d7e4\":{\"label\":\"Count of Records\",\"dataType\":\"number\",\"operationType\":\"cardinality\",\"scale\":\"ratio\",\"sourceField\":\"updatedAt\",\"isBucketed\":false,\"customLabel\":true},\"fddf41e6-a37e-4f38-8a16-38992a482029\":{\"label\":\"isActive\",\"dataType\":\"boolean\",\"operationType\":\"terms\",\"scale\":\"ordinal\",\"sourceField\":\"isActive\",\"isBucketed\":true,\"params\":{\"size\":3,\"orderBy\":{\"type\":\"column\",\"columnId\":\"ed42aae5-acd9-4660-851b-08d8cbe0d7e4\"},\"orderDirection\":\"desc\",\"otherBucket\":true,\"missingBucket\":false},\"customLabel\":true}},\"columnOrder\":[\"4d9f39fd-766c-47ce-9fca-bcd08778c277\",\"fddf41e6-a37e-4f38-8a16-38992a482029\",\"ed42aae5-acd9-4660-851b-08d8cbe0d7e4\"],\"incompleteColumns\":{}}}}},\"visualization\":{\"legend\":{\"isVisible\":true,\"position\":\"right\"},\"valueLabels\":\"hide\",\"fittingFunction\":\"None\",\"axisTitlesVisibilitySettings\":{\"x\":true,\"yLeft\":true,\"yRight\":true},\"tickLabelsVisibilitySettings\":{\"x\":true,\"yLeft\":true,\"yRight\":true},\"gridlinesVisibilitySettings\":{\"x\":true,\"yLeft\":true,\"yRight\":true},\"preferredSeriesType\":\"bar_horizontal\",\"layers\":[{\"layerId\":\"0bdddee9-20e1-4eeb-b457-f58ba3995806\",\"accessors\":[\"ed42aae5-acd9-4660-851b-08d8cbe0d7e4\"],\"position\":\"top\",\"seriesType\":\"bar_horizontal\",\"showGridlines\":false,\"xAccessor\":\"4d9f39fd-766c-47ce-9fca-bcd08778c277\",\"splitAccessor\":\"fddf41e6-a37e-4f38-8a16-38992a482029\"}]},\"query\":{\"query\":\"\",\"language\":\"kuery\"},\"filters\":[{\"meta\":{\"alias\":null,\"negate\":true,\"disabled\":false,\"type\":\"phrase\",\"key\":\"updatedBy\",\"params\":{\"query\":\"ByHangfire\"},\"indexRefName\":\"filter-index-pattern-0\"},\"query\":{\"match_phrase\":{\"updatedBy\":\"ByHangfire\"}},\"$state\":{\"store\":\"appState\"}}]},\"references\":[{\"type\":\"index-pattern\",\"id\":\"694bb570-bc8e-11ec-9685-6923345c3493\",\"name\":\"indexpattern-datasource-current-indexpattern\"},{\"type\":\"index-pattern\",\"id\":\"694bb570-bc8e-11ec-9685-6923345c3493\",\"name\":\"indexpattern-datasource-layer-0bdddee9-20e1-4eeb-b457-f58ba3995806\"},{\"name\":\"filter-index-pattern-0\",\"type\":\"index-pattern\",\"id\":\"694bb570-bc8e-11ec-9685-6923345c3493\"}]},\"enhancements\":{}}}]","timeRestore":false,"title":"test","version":1},"coreMigrationVersion":"7.12.0","id":"678223b0-bfe9-11ec-9685-6923345c3493","migrationVersion":{"dashboard":"7.11.0"},"references":[{"id":"694bb570-bc8e-11ec-9685-6923345c3493","name":"indexpattern-datasource-current-indexpattern","type":"index-pattern"},{"id":"694bb570-bc8e-11ec-9685-6923345c3493","name":"indexpattern-datasource-layer-0bdddee9-20e1-4eeb-b457-f58ba3995806","type":"index-pattern"},{"id":"694bb570-bc8e-11ec-9685-6923345c3493","name":"filter-index-pattern-0","type":"index-pattern"}],"type":"dashboard","updated_at":"2022-04-19T14:02:52.651Z","version":"WzMyMTk1LDdd"}
{"exportedCount":1,"missingRefCount":0,"missingReferences":[]}