Sense: Failing reloads and BNF script reload modeArticle Number: 000036003 | Last Modified: 2018/07/20
After upgrading to Qlik Sense June 2017, odd behavior may be seen with expressions, scripts, set analysis, etc. Things like:
- Expression editor may throw an error
- Chart may show empty
- Chart may show "Incomplete visualization"
- Chart may show "Invalid dimension"
- And any other odd behavior that would mimic a change in the script (expression, set analysis, etc)
See article Quotes in Set Analysis change in behavior
To learn more about BNF see https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form
Keep an eye on Henric's blog for this topic: https://community.qlik.com/people/hic/content?sortKey=contentstatus%5Bpublished%5D~creationDateDesc&sortOrder=0&itemView=detail
A draft version of a blog post can be found in article Quotes in Set Analysis change in behavior
If using a release prior to 11.14.3 follow the guidelines below.
A new script reload mode, BNF, has been introduced. In some unusual cases, users may need to disable the BNF reload mode using one of these methods:
Disabling BNF reload mode for the entire server:
Modify it to read:
[Settings 7] EnableBnfReload=0
Disabling BNF reload mode for individual apps:
This script mode will be backed out for the next releases of Qlik Sense. This should happen by the June 2017 Patch3 and the Sept 2017 releases. This new BNF mode is targeted for QlikView November 2017, and will return to Qlik Sense after we have educated the customer community on the ramifications (approximately 6 months). This new script mode is required to fix several bugs from the past around searching and selection (See Jira story QV-92)
It is a good idea to use the ///$bnf off tag as a troubleshooting step. See if toggling this setting in the load script will cause a change in the suspect behavior.
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