diff --git a/src/frontends/qt/GuiInputMethod.cpp b/src/frontends/qt/GuiInputMethod.cpp
index 968fcd72fd..c929742c7f 100644
--- a/src/frontends/qt/GuiInputMethod.cpp
+++ b/src/frontends/qt/GuiInputMethod.cpp
@@ -255,7 +255,7 @@ void GuiInputMethod::processPreedit(QInputMethodEvent* ev)
 	d->cur_row_idx_ = initializePositions(d->cur_);
 	// initialize virtual caret to the anchor (real cursor) position
 	d->init_point_ =
-		initializeCaretCoords(d->cur_row_idx_,
+		initializeCaretCoords(d->cur_row_idx_ + d->real_boundary_,
 				      d->real_boundary_ && !d->im_state_.composing_mode_);
 
 	// Push preedit texts into row elements, which can shift the anchor
@@ -759,10 +759,10 @@ std::array<int,2> GuiInputMethod::setCaretOffset(pos_type caret_pos)
 
 	// caret_row.index doesn't decrease with virtual_boundary
 	// has multiple preedit rows
-	if (caret_row.index > d->cur_row_idx_ || d->real_boundary_) {
+	if (caret_row.index > d->cur_row_idx_ + d->real_boundary_ || d->real_boundary_) {
 		QString lastline_str;
 
-		if (d->real_boundary_ && caret_row.index == d->cur_row_idx_)
+		if (d->real_boundary_ && caret_row.index == d->cur_row_idx_ + d->real_boundary_)
 			lastline_str = str_before_caret;
 		else
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -817,10 +817,10 @@ std::array<int,2> GuiInputMethod::setCaretOffset(pos_type caret_pos)
 
 	// vertical offset only applicable to main text
 	caret_offset[1] = 0;
-	for (pos_type i = d->cur_row_idx_ -
-	     (d->real_boundary_ && d->im_state_.composing_mode_);
-	     i < caret_row.index -
-	     (d->real_boundary_ && !d->im_state_.composing_mode_); ++i)
+	for (pos_type i = d->cur_row_idx_ +
+	     (d->real_boundary_ && !d->im_state_.composing_mode_);
+	     i < caret_row.index +
+	     (d->real_boundary_ && d->im_state_.composing_mode_); ++i)
 		caret_offset[1] += d->rows_[i].descent() + d->rows_[i+1].ascent();
 
 	return caret_offset;
@@ -1167,8 +1167,8 @@ pos_type GuiInputMethod::initializePositions(Cursor * cur)
 	// post_real_boundary can be treated interchangeably, so merge them into
 	// real_boundary, i.e. d->real_boundary_.
 	real_boundary |= post_real_boundary;
-	if (real_boundary)
-		++cur_row_idx;
+	// if (real_boundary)
+	// 	++cur_row_idx;
 
 	LYXERR(Debug::DEBUG, "========== BEGIN: initializePositions ==========");
 	LYXERR(Debug::DEBUG, "cur_row_idx   = " << cur_row_idx <<
@@ -1179,10 +1179,10 @@ pos_type GuiInputMethod::initializePositions(Cursor * cur)
 	        d->buffer_view_->textMetrics(
 	            cur->innerText()).maxWidth()
 	             - d->rows_[cur_row_idx].right_margin);
-	if (real_boundary)
-		LYXERR(Debug::DEBUG, "row width     = " << std::dec <<
-		        d->rows_[cur_row_idx-1].width());
-	else
+	// if (real_boundary)
+	// 	LYXERR(Debug::DEBUG, "row width     = " << std::dec <<
+	// 	        d->rows_[cur_row_idx-1].width());
+	// else
 		LYXERR(Debug::DEBUG, "row width     = " << std::dec <<
 		        d->rows_[cur_row_idx].width());
 	if (d->preedit_str_.empty())
@@ -1262,18 +1262,19 @@ GuiInputMethod::PreeditRow GuiInputMethod::getCaretInfo(
 {
 	// the virtual boundary case has the real cusor on the second row of
 	// the preedit inputs
-	const pos_type second_row_idx = d->cur_row_idx_ + 1 - virtual_boundary;
+	const pos_type second_row_idx =
+	        d->cur_row_idx_ + 1 + d->real_boundary_ - virtual_boundary;
 
 	// accumulate the length of preedit elements within d->rows_[d->cur_row_idx_]
 	// the length of str is used since preedits has zero widths (pos == endpos)
 	// second_row_pos is only useful when preedit string goes over two rows
-	LASSERT(d->cur_row_idx_ - real_boundary < (pos_type)d->rows_size_ &&
-	        d->cur_row_idx_ - real_boundary >= 0, return {});
+	LASSERT(d->cur_row_idx_ < (pos_type)d->rows_size_ &&
+	        d->cur_row_idx_ >= 0, return {});
 	Row::const_iterator begin =
-	        d->rows_[d->cur_row_idx_ - real_boundary].findElement(d->cur_pos_, false);
+	        d->rows_[d->cur_row_idx_].findElement(d->cur_pos_, false);
 	pos_type second_row_pos = d->cur_pos_;
 	for (Row::const_iterator eit = begin;
-	     eit < d->rows_[d->cur_row_idx_ - real_boundary].end(); ++eit)
+	     eit < d->rows_[d->cur_row_idx_].end(); ++eit)
 		second_row_pos += eit->str.length();
 
 	PreeditRow caret_row{};
@@ -1286,7 +1287,7 @@ GuiInputMethod::PreeditRow GuiInputMethod::getCaretInfo(
 
 	// if the preedit caret is on the second row or later, count the second row
 	caret_row.index = d->caret_pos_ > second_row_pos ?
-	            second_row_idx + virtual_boundary : d->cur_row_idx_;
+	            second_row_idx + virtual_boundary : d->cur_row_idx_ + d->real_boundary_;
 
 	// the second row exists and begins with the preedit
 	if (second_row_idx - real_boundary + virtual_boundary < (pos_type)d->rows_size_ &&