diff --git a/pipewire-pulseaudio/src/context.c b/pipewire-pulseaudio/src/context.c
index b00524218..0f4c70dbc 100644
--- a/pipewire-pulseaudio/src/context.c
+++ b/pipewire-pulseaudio/src/context.c
@@ -840,6 +840,7 @@ static void on_success(pa_operation *o, void *userdata)
 {
 	struct success_data *d = userdata;
 	pa_context *c = o->context;
+	pw_log_debug("context %p: error %d", c, d->error);
 	if (d->error != 0)
 		pa_context_set_error(c, d->error);
 	if (d->cb)
diff --git a/pipewire-pulseaudio/src/internal.h b/pipewire-pulseaudio/src/internal.h
index c2088be44..4ef5fa933 100644
--- a/pipewire-pulseaudio/src/internal.h
+++ b/pipewire-pulseaudio/src/internal.h
@@ -152,11 +152,15 @@ do {									\
 
 #define PA_FAIL(context, error)                                 \
     do {                                                        \
-        return -pa_context_set_error((context), (error));          \
+	pw_log_debug("fail at %s:%u %s()",			\
+			, __FILE__, __LINE__, __func__);	\
+        return -pa_context_set_error((context), (error));	\
     } while(false)
 
 #define PA_FAIL_RETURN_ANY(context, error, value)      \
     do {                                               \
+	pw_log_debug("fail at %s:%u %s()",			\
+			, __FILE__, __LINE__, __func__);	\
         pa_context_set_error((context), (error));         \
         return value;                                  \
     } while(false)
diff --git a/pipewire-pulseaudio/src/introspect.c b/pipewire-pulseaudio/src/introspect.c
index d9c6d9569..526ddda8e 100644
--- a/pipewire-pulseaudio/src/introspect.c
+++ b/pipewire-pulseaudio/src/introspect.c
@@ -37,6 +37,7 @@ static void on_success(pa_operation *o, void *userdata)
 {
 	struct success_ack *d = userdata;
 	pa_context *c = o->context;
+	pw_log_debug("error:%d", d->error);
 	if (d->error != 0)
 		pa_context_set_error(c, d->error);
 	if (d->cb)
diff --git a/pipewire-pulseaudio/src/stream.c b/pipewire-pulseaudio/src/stream.c
index 8b2d84f02..87da005cc 100644
--- a/pipewire-pulseaudio/src/stream.c
+++ b/pipewire-pulseaudio/src/stream.c
@@ -449,7 +449,7 @@ static void update_timing_info(pa_stream *s)
 	pw_stream_get_time(s->stream, &pwt);
 	s->timing_info_valid = false;
 	s->queued = pwt.queued;
-	pw_log_trace("stream %p: %"PRIu64, s, s->queued);
+	pw_log_debug("stream %p: %"PRIu64" rate:%d", s, s->queued, pwt.rate.denom);
 
 	if (pwt.rate.denom == 0)
 		return;
@@ -1334,6 +1334,7 @@ pa_operation* pa_stream_drain(pa_stream *s, pa_stream_success_cb_t cb, void *use
 
 	pw_log_debug("stream %p", s);
 	pw_stream_flush(s->stream, true);
+	update_timing_info(s);
 	o = pa_operation_new(s->context, s, on_success, sizeof(struct success_ack));
 	d = o->userdata;
 	d->cb = cb;
diff --git a/spa/plugins/audioconvert/channelmix.c b/spa/plugins/audioconvert/channelmix.c
index ba041ca12..651928a04 100644
--- a/spa/plugins/audioconvert/channelmix.c
+++ b/spa/plugins/audioconvert/channelmix.c
@@ -903,6 +903,9 @@ static int impl_node_process(void *object)
 			db->datas[i].chunk->size = n_samples * outport->stride;
 		}
 
+		spa_log_trace_fp(this->log, NAME " %p: n_src:%d n_dst:%d n_samples:%d p:%d",
+				this, n_src_datas, n_dst_datas, n_samples, is_passthrough);
+
 		if (!is_passthrough)
 			channelmix_process(&this->mix, n_dst_datas, dst_datas,
 				    n_src_datas, src_datas, n_samples);
diff --git a/spa/plugins/audioconvert/merger.c b/spa/plugins/audioconvert/merger.c
index 0a2b8e435..decb27c90 100644
--- a/spa/plugins/audioconvert/merger.c
+++ b/spa/plugins/audioconvert/merger.c
@@ -1006,9 +1006,11 @@ static int impl_node_process(void *object)
 		dbuf->buf->datas[i].data = dst_datas[i];
 		dbuf->buf->datas[i].chunk->offset = 0;
 		dbuf->buf->datas[i].chunk->size = n_samples * outport->stride;
-		spa_log_trace_fp(this->log, NAME " %p %p %d", this, dst_datas[i],
-				n_samples * outport->stride);
 	}
+
+	spa_log_trace_fp(this->log, NAME " %p: n_src:%d n_dst:%d n_samples:%d max:%d p:%d", this,
+			n_src_datas, n_dst_datas, n_samples, maxsize, this->is_passthrough);
+
 	if (!this->is_passthrough)
 		convert_process(&this->conv, dst_datas, src_datas, n_samples);