diff --git a/src/frontends/qt/GuiTabular.cpp b/src/frontends/qt/GuiTabular.cpp
index 5c32edc7d4..26f3f6debb 100644
--- a/src/frontends/qt/GuiTabular.cpp
+++ b/src/frontends/qt/GuiTabular.cpp
@@ -267,7 +267,8 @@ void GuiTabular::enableWidgets() const
 	bool const enable_valign =
 		!multirowCB->isChecked()
 		&& !widgetsToLength(columnWidthED, columnWidthUnitLC).empty()
-		&& specialAlignmentED->text().isEmpty();
+		&& specialAlignmentED->text().isEmpty()
+		&& funcEnabled(Tabular::VALIGN_BOTTOM);
 	vAlignCO->setEnabled(enable_valign);
 	vAlignLA->setEnabled(enable_valign);
 
diff --git a/src/insets/InsetTabular.cpp b/src/insets/InsetTabular.cpp
index 2365d2e1be..758400f7c2 100644
--- a/src/insets/InsetTabular.cpp
+++ b/src/insets/InsetTabular.cpp
@@ -5675,6 +5675,7 @@ bool InsetTabular::getFeatureStatus(Cursor & cur, string const & s,
 		col_type sel_col_end = 0;
 		Tabular::ltType dummyltt;
 		bool flag = true;
+		bool const tabularx = tabular.hasVarwidthColumn();
 
 		getSelection(cur, sel_row_start, sel_row_end, sel_col_start, sel_col_end);
 
@@ -5950,7 +5951,8 @@ bool InsetTabular::getFeatureStatus(Cursor & cur, string const & s,
 			flag = false;
 			// fall through
 		case Tabular::VALIGN_BOTTOM:
-			status.setEnabled((!tabular.getPWidth(cur.idx()).zero()
+			status.setEnabled(!tabularx
+					  && (!tabular.getPWidth(cur.idx()).zero()
 					   || tabular.getUsebox(cur.idx()) == Tabular::BOX_VARWIDTH));
 			status.setOnOff(
 				tabular.getVAlignment(cur.idx(), flag) == Tabular::LYX_VALIGN_BOTTOM);
@@ -5960,7 +5962,8 @@ bool InsetTabular::getFeatureStatus(Cursor & cur, string const & s,
 			flag = false;
 			// fall through
 		case Tabular::VALIGN_MIDDLE:
-			status.setEnabled((!tabular.getPWidth(cur.idx()).zero()
+			status.setEnabled(!tabularx
+					  && (!tabular.getPWidth(cur.idx()).zero()
 					   || tabular.getUsebox(cur.idx()) == Tabular::BOX_VARWIDTH));
 			status.setOnOff(
 				tabular.getVAlignment(cur.idx(), flag) == Tabular::LYX_VALIGN_MIDDLE);
diff --git a/status.24x b/status.24x
index b0a7e1d40b..1df3c6b7a7 100644
--- a/status.24x
+++ b/status.24x
@@ -94,6 +94,10 @@ What's new
 
 - Display values of cross-references in tooltips for forward references.
 
+- Disable vertical alignment in tables with variable width columns (tabularx
+  and xltable), as this is not supported by the packages. Also fix the
+  disabling mechanism in the table dialog.
+
 
 * INTERNALS