Running TT 3.5.126. All of the "Get Count" commands are working for me (variables are added to MLServer variable list when issue command for first time), except GETCHAPTERCOUNT. GetChapterCount sucessfully gets the chapter count from TT client, showing the proper value in the TT plugin log, but does not create the variable in MLServer list and pass the value. All variables are enabled in the TT plugin.
plugin log: Cmd: getchaptercount~TT_AVPP2 from panel2
No default alias defined. Using TT_AVPP2
SendText: Alias=[TT_AVPP2] Str=[1610 TT_AVPP2]
SendText: Alias is at row 
Rcvd: TheaterTek slot #0 [1610 36^]
36 is the correct chaptercount for the dvd playing at the time.
No dvd_1_chaptercount variable is created/populated in MLServer Variable List.
Under MLServer Vars Tab for TT plugin (w/o "s) (not cngd from default list)
Enable checked, "Chapter Count", "DVD_<<ID>>_ChapterCount"
Using same command structure, variables are created for the other 4 get-count variables.
What's wrong with chapter count?