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.