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maybe this can help someone Potential fix for out-... | Unofficial RAD Studio Documentation (code-kungfu.com) the app got accpted in the google play store with no warning... i just need to update the code somehow

I don't think Embarcadero has thought this through. Linux clearly needs to be available in all SKU especially in the Community Edition which would be taken up by the casual or hobbyist developer.

I see no other way to do this for vertical walls, since the memory locations of the pixels in question are not contiguous if the storage used has the typical bitmap layout. But you may be approaching the whole problem the wrong way. Instead of working directly with the bitmap image of the rendered scene you should build the scene as a list of objects, each of which represents an element of the scene. In this case the vertical wall would be one such object, storing its location and dimensions internally. You then walk over the list of objects and test whether the point (X,Y) falls inside such an object. This search can be sped up considerably by storing the objects in a tree or list sorted on coordinates. I have never worked in this area myself, but it is a common problem in game design, there should be plenty of literature around on the subject.

Is there a "build event" set in any of these projects? That would execute a background program upon a full build.

Linux is only supported in Enterprise or higher SKU. Not even Professional SKU has Linux support. https://www.embarcadero.com/products/delphi/product-editions

did you initialized Android libraries dependencies in your project (from project manager / platform / android / library and contextual menu) ? (the SDK changed in 11.0 and in 11.2)