About the $like operator in Dynamic Menu Filter

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Regarding Dynamic Menu Filter, I am trying to do the following:

{$and: [
{Code:{$like:"xx%"}}
]}
This worked.

{$and: [
{Code:{$like:"|yyCode_t_c|"}}
]}
This also worked.

but,
{$and: [
{Code:{$like:"|yyCode_t_c|%"}}
]}
This doesn't work.

Are there any restrictions or errors in the description regarding this?