Android Question Canvas issue resolved

In my "Strange behavior of Canvas" post, which is now closed:

a problem with the operation of Canvas has been described.

My project was created without using B4XPages.
Mr. Erel advised me to move on to building the project with B4XPages.

I made a new simple project based on B4XPages, where there was nothing but a small piece of code that gave an error on the tablet.
Indeed, the error is gone.

I am writing this message for only one purpose: to express my gratitude to Mr. Erel for his help.