[2.0] r5216.7z. templates sometimes don't work

[2.0] r5216.7z. templates sometimes don't work

1) Run the program
2) Click New>create from template>Piano>Next>Next>Finish
3) You get a normal piano score
4) Close the tab
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5) Click New>create from template>Piano
6) Now the 'Next' button is inactive
7) As you can't continue, double click 'Piano'
8) Click Next>Finish
9) Message box: "Cannot read file: error: Unknown error". Close it. No score appears.
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10) Click New>create from template>Piano
11) Now the 'Next' button is inactive
12) As you can't continue, click another template and then 'piano again
13) Now the 'next' button becomes active
14) follow on and you get a normal piano score again
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I changed the language of the program from system (Spanish) to English, but nothing changes.