I was able to "fix" this by adding newlines after the "text:" statement in the "#proc annotate" blocks, like this:
#proc annotate #saveas: AXISann textdetails: color=black align=C size=@TEXTSIZE_2 location: 5.5(s) 0.25 test: NaCl
#proc annotate #saveas: AXISann textdetails: color=black align=C size=@TEXTSIZE_2 location: 8.5(s) 0.25 text: pH-2
#proc annotate #saveas: AXISann textdetails: color=black align=C size=@TEXTSIZE_2 location: 11.5(s) 0.25 text: pH-9
I was able to "fix" this by adding newlines after the "text:" statement in the "#proc annotate" blocks, like this:
#proc annotate
#saveas: AXISann
textdetails: color=black align=C size=@TEXTSIZE_2
location: 5.5(s) 0.25
test: NaCl
#proc annotate
#saveas: AXISann
textdetails: color=black align=C size=@TEXTSIZE_2
location: 8.5(s) 0.25
text: pH-2
#proc annotate
#saveas: AXISann
textdetails: color=black align=C size=@TEXTSIZE_2
location: 11.5(s) 0.25
text: pH-9