rests missing

[Rob]

Hi,

Since a few days I use version 2.6.3. from a debian package (Kubuntu)

I ran in the following two problems.

1)

\override MultiMeasureRest #'expand-limit = 1
\set Score.skipBars = ##t
R1*4

Result:
1 single rest-measure with the number 4 written above.

When I change to

R1*6 (or 7 or ...)
There is a 6 (or7 or...) written above

but:
R1*5  gives no a 5 written above it; in fact here is nothing!

2)

A more or less identical problem is shown in \time

when I write
\time 2/4 or 6/8
in the Staff it is shown as 2/4 and 6/8

In
\time 3/4 only the "4" is shown in it's proper place,
which is the lower part of the Staff
but  
in stead of a "3" above it there is a blank place


What can I do about it?

Rob