Pe 13 debug event keyframe error h-142

Question

When I open my previously saved and working project, I get a Debug Event with a keyframe h-142 message (see below).
The workaround proposed in adobe help under Keyframe.h-142 error | Opening projects does not work. I guess because PE13's .prel files are not in plain text format as PE12 and previously, therefore the workaround with perl will not deliver the required results.
Same issue with ALL backup files of this project...
Any suggestions?

Answer 1

I was able to fix the file with the information from post Re: Elements 10 Error: d:\pre\mediacore\mediafoundation\api\inc\Keyframe/Keyframe.h-142
Here are the steps I performed:
1) rename my corrupt.prel file to corrupt.zip (when opening the file in notepad++, I saw a lot of gibberish and thought the file might be zipped, which it is. I am not sure whether this is only the case in PE13).
2) unzip the corrupt.zip and rename it to corrupt2.prel
3) download perl and run the following commands:
C:\Perl64\bin>perl -p -e "s/([-0-9]+?),([0-9]{12,24})/$1.$2/g" corrupt2.prel >corrupt3.prel
C:\Perl64\bin>perl -p -e "s/([-0-9]+?)\.([0-9]{12,24});([0-9]{15})/$1.$2,$3/g" corrupt3.prel >corrupt4.prel
4) Open the file in notepad++ and
search for ",," and replace it by ".,"
search for "0,5" and replace it by "0.5"
and save the file
There, that did it for me. The fixed file does not have to be zipped again for it to open in PE13.