convert string value to float or int

I had created a string with float values separated by ; (semicolons)
I split on ; and tried to convert to float, but this didn´t work, even when to_u32, to_u64 and to_f64 nodes exist.

Start by reproducing the semicolon-separated string case described in the issue and inspect how split string values are passed to the to_u32, to_u64, and to_f64 nodes. Identify the conversion path responsible for rejecting or mishandling the values, then verify that valid split numeric strings convert successfully to integer and float outputs.

Written by the indexing model from the issue text.