Secondary Method Not Invoked - Possible String Length Connection ?

We have a workflow exhibiting a problem that, after much unlayering, can best be be distilled as follows.
A variable of type string exists in the work flow container, and its parameters are set for import/export.
A variable of type string exists in the task container, and its parameters are set for import/export.
An ABAP Object method is called by the task and it manipulates the string.
The task can be called repetitively.
The string is always bound from the workflow container, to the task container, to the method, manipulated, and passed back to the task container and the workflow container as would be expected.
This all works fine.
Additionally, we have implemented a secondary method on the task which displays an image.
While the string processing continues to work well, we have found that our secondary method does not execute if our character string is more than 255 characters in length. If the string is less than 255, the image launch works fine.
Solutions appreciated...
...Mike

Hello,
Interesting! What version is this happening on?
What manipulation is done on the string, does it increase in length.
Could you give an example of the secondary task to display an image, and any other info which would help someone replicate this problem?
If you have a problem that can be replicated at will, you should send it to OSS.
regards
Rick Bakker
Hanabi Technology

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