Hi Marco,
Thanks for contacting Syncfusion Support.
We are able to reproduce your reported issue “Frozen movable column gets hided while scrolling “ at our end in v 14.3.0.49. Please refer to the below screenshot:-
We suspected that you have faced like this problem while on scrolling. We have fixed this issue in our latest release. So we suggest to upgrade to our latest Essential Studio.
If you would like to upgrade to the latest version, please follow the below steps.
1) Download and install the Essential Studio v15.4.0.17 from the below link.
2) Replace the Syncfusion scripts, and CSS in your project from the following location.
Scripts and CSS: C:\Program Files (x86)\Syncfusion\Essential Studio\XX.X.X.XX\JavaScript\assets
Here XX.X.X.XX denotes the product version(15.4.0.17).
And also after upgrading please ensure to clear the browser cache to avoid accidental reference of the old scripts/CSS.
If we misunderstood your problem, please share us screenshot/Video Demo to replicate your issue that would be helpful to resolve your problem as soon as possible.
Regards,
Farveen Sulthana T