[PD] Tcl errors on opening Test Audio MIDI

[Max]

I have something strange going on with Pd (0.50 on Linux kubuntu 19.10) 
It was working before, but now when I open the Test Audio MIDI patch it 
shows an empty canvas with just one numberbox in it and this error:


(Tcl) UNHANDLED ERROR: bad screen distance "88.000000"
     while executing
"$tkcanvas create text $x $y -tags $tags  -text [::pdtk_text::unescape 
$text]  -fill $color -anchor nw -font [get_font_for_size $font_size]"
     (procedure "pdtk_text_new" line 2)
     invoked from within
"pdtk_text_new .x5627d7726b80.c {.x5627d7726b80.t5627d7783760 atom text} 
88.000000 276.000000 {0 } 12 black"
     ("uplevel" body line 9)
     invoked from within
"uplevel #0 $docmds"


I then cloned the git version and compiled and installed it to see if 
that would change anything but it's the same error.