9.1.2.1: ACTION-FIRST-PAGE no longer works with Paged Grid controls

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Problem:

Paged grids may not work correctly anymore with Thin Client 9.1.2.1.
Usually, these grids are loaded using the following syntax:

MODIFY grid-handle, ACTION = ACTION-FIRST-PAGE

Starting with release 9.1.2.1, runtime does not enter automatically in the Event section and the grid is shown as empty.

Resolution:

Add the following environment variable in the runtime configuration file (cblconfi):

ECN_2425 FALSE

By default, ECN-2425 is enabled. This ECN refers to an enhancement developed to give a performance improvement to the Paged Grid control. 
When you disable this ECN you no longer get the performance improvements (although slightly noticeable with the latest releases of ACU runtime) and the ACTION-FIRST-PAGE event is managed correctly.

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