capitalize first letter of every sentence will not work

i have libreoffice 6.3.i go to tools then auto correct then auto correct options i have ticked capitalize first letter of every sentence but it still will not work for me,can anyone please please help me

i have tried putting a full stop at the end of sentence and it still will not work

This option works while typing text. It does nothing to existing material.

Also a sentence start is the first word following the start of the document or a “strong” punctuation (period, interrogation/exclamation point and a few others).

Consequently if the previous paragraph does end with one of these signs, the first word of the current one is not capitalised.

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it will not working for me in typing text.i just got this so have no existing material.

Consequently if the previous paragraph does end with one of these signs, the first word of the current one is not capitalised.

Shouldn’t it read:

Consequently if the previous paragraph does not end with one of these signs, the first word of the current one is not capitalised.

?

Also, consider this bug report:

Bug 100778 - “Start with caps” autocorrect doesn’t work if word contains apostrophe and “Single quotes” option is on

i thank everyone for their comments but i will explain a little better.i play a text based cricket game and write the results down so it might say .

Australia def India

Australia 1st innings results
India 1st innings results

i was using another computer with word 10 on it, but the motherboard went on it so i just got a reconditioned computer and they put libreoffice 6,3 on it and put my saved documents into that.now evertime i write a country down it will not put an automatic capital letter there for me like it is suppose too.i have checked every where and it is ticked like it is suppose to be but it still will not work.

@michellec, that’s because the previous sentence does not end in a full stop. The autocorrect has some limitation interpreting when a new sentence is started. See for example here.

ok so i added a full stop to the end of each line and it still does not work any ideas what im doing wrong