# \#bugs **URL:** https://clarionhub.com/tag/bugs/15.md [Latest](https://clarionhub.com/latest.md) · [Categories](https://clarionhub.com/categories.md) · [Tags](https://clarionhub.com/tags.md) --- ## [Warning: Clarion 12 Build 13999 Appears to Have Serious Template Generation Bug](https://clarionhub.com/t/warning-clarion-12-build-13999-appears-to-have-serious-template-generation-bug/9095)
**Author:** [@Mark\_Sarson](https://clarionhub.com/u/Mark_Sarson)\ **Replies:** 45\ **Last updated:** [September 17, 2026, 11:58pm UTC](https://clarionhub.com/t/warning-clarion-12-build-13999-appears-to-have-serious-template-generation-bug/9095 "2026-09-17T23:58:38Z")
Heads up to anyone using the Clarion 12 IDE day-to-day — I would strongly recommend holding off updating to Build 13999 for now. I’ve just run into what appears to be a major issue in the template generation process. T… --- ## [Memory leak with TIMER](https://clarionhub.com/t/memory-leak-with-timer/9190)
**Author:** [@jkay](https://clarionhub.com/u/jkay)\ **Replies:** 40\ **Last updated:** [August 26, 2026, 11:46am UTC](https://clarionhub.com/t/memory-leak-with-timer/9190 "2026-08-26T11:46:18Z")
I’ve been advised (via the C12 newsgroup) to repost this here… It would be appreciated if someone from SV could look at problem tracker #43507. This will prevent our C12 adoption and it’s very likely other Clarion use… --- ## [Intermittent bug with #IF( %sym ) - %sym seems to be Null when it fails](https://clarionhub.com/t/intermittent-bug-with-if-sym-sym-seems-to-be-null-when-it-fails/9111)
**Author:** [@RchdR](https://clarionhub.com/u/RchdR)\ **Replies:** 7\ **Last updated:** [May 18, 2026, 7:39pm UTC](https://clarionhub.com/t/intermittent-bug-with-if-sym-sym-seems-to-be-null-when-it-fails/9111 "2026-05-18T19:39:42Z")
Found a situation, which has intermittently plagued me for several years now, reproducible in C6 and C11. Simple #IF( %sym ) which is being used to see if a value is present or not will resolve to false when it should r… --- ## [Bug in #For(%Symbol) when using #Delete(%Symbol) skips some](https://clarionhub.com/t/bug-in-for-symbol-when-using-delete-symbol-skips-some/9035)
**Author:** [@RchdR](https://clarionhub.com/u/RchdR)\ **Replies:** 10\ **Last updated:** [April 10, 2026, 11:18pm UTC](https://clarionhub.com/t/bug-in-for-symbol-when-using-delete-symbol-skips-some/9035 "2026-04-10T23:18:47Z")
Found a bug in the #For() template command which intermittently doesnt delete all instances. Its like the internal counter gets messed up after the delete, ie record 2, delete record 2, record 3 becomes record 2 and the… --- ## [Clarion 12 13941 MSSQL Driver Bug](https://clarionhub.com/t/clarion-12-13941-mssql-driver-bug/8940)
**Author:** [@Justin\_Rumpf](https://clarionhub.com/u/Justin_Rumpf)\ **Replies:** 17\ **Last updated:** [March 3, 2026, 9:03pm UTC](https://clarionhub.com/t/clarion-12-13941-mssql-driver-bug/8940 "2026-03-03T21:03:42Z")
I have seen 1 post on this before, from last May 2025 - which didn’t have a strong answer. I am posting this issue again in the hopes it gets addressed. I have also emailed SV for guidance. Long story short, C12 app usi… --- ## [Incorrect displaying of large numerics](https://clarionhub.com/t/incorrect-displaying-of-large-numerics/8265)
**Author:** [@Rick\_UpperPark](https://clarionhub.com/u/Rick_UpperPark)\ **Replies:** 0\ **Last updated:** [June 6, 2025, 4:10pm UTC](https://clarionhub.com/t/incorrect-displaying-of-large-numerics/8265 "2025-06-06T16:10:02Z")
General warning that the runtime doesn’t display large numbers correctly depending on the picture. In this example, the entry fields all have the same USE variable that is a decimal 20,2 with a value of has 100553040855… --- ## [Clarion 11: Option group bug?](https://clarionhub.com/t/clarion-11-option-group-bug/3033)
**Author:** [@SkAn](https://clarionhub.com/u/SkAn)\ **Replies:** 8\ **Last updated:** [January 14, 2020, 8:33am UTC](https://clarionhub.com/t/clarion-11-option-group-bug/3033 "2020-01-14T08:33:36Z")
Hi all, in Clarion 11 we noticed the following option group malfunction: if the variable that the option group represents is of type STRING and its value does not match any option in the group, the first option (in the … --- ## [Freeze/GPF When Calling Find and Replace (RTF)](https://clarionhub.com/t/freeze-gpf-when-calling-find-and-replace-rtf/1685)
**Author:** [@NimbusHex](https://clarionhub.com/u/NimbusHex)\ **Replies:** 4\ **Last updated:** [March 1, 2018, 12:43pm UTC](https://clarionhub.com/t/freeze-gpf-when-calling-find-and-replace-rtf/1685 "2018-03-01T12:43:50Z")
All, Having an issue with a Clarion 10 application where calling a Find and Replace dialog freezes and very occasionally GPFs an application after performing the replace action. This only seems to occur on Windows 7, c… --- ## [Using DIRECTORY with ff\_:queue crashes with Remote Desktop Service and User Profile Disks](https://clarionhub.com/t/using-directory-with-ff--queue-crashes-with-remote-desktop-service-and-user-profile-disks/431)
**Author:** [@Rick\_UpperPark](https://clarionhub.com/u/Rick_UpperPark)\ **Replies:** 2\ **Last updated:** [June 16, 2017, 5:35pm UTC](https://clarionhub.com/t/using-directory-with-ff--queue-crashes-with-remote-desktop-service-and-user-profile-disks/431 "2017-06-16T17:35:11Z")
I ran into a very interesting bug using DIRECTORY. In Windows Server 2012 using Remote Desktop Services you can setup what is called User Profile Disks. This creates a virtual disk on the server for the each users’ spe…